(a) Only one
CPI was the party in opposition, led by Comrade Shripad Amrut Dange. The Indian National Congress (INC) won a landslide victory, winning 364 of the 489 seats and 45% of the total votes polled. This was over four times as many votes as the second-largest party, CPI. (Statement 1 is incorrect)
It was in 1969 that for the first time the Leader of the Opposition was recognised. It was Ram Subhag Singh. (Statement 2 is correct)
The post received statutory recognition through the Salaries and Allowances of Leaders of Opposition in Parliament Act, 1977, which defines the term “Leader of the Opposition” as that member of the Lok Sabha or the Rajya Sabha who, for the time being, is the Leader of that House of the Party in Opposition to the Government having the greatest numerical strength and recognised, as such, by the Chairman of the Rajya Sabha or the Speaker of the Lok Sabha. A party needs to have 54 members. (At least 10%). (Statement 3 is incorrect)
The question could be solved using elimination method. With general understanding of Parliament, it is widely known that to be appointed as leader of the opposition, with at least 10% strength in Lok Sabha, which makes it 54. Therefore, statement 3 is incorrect and eliminating it we get the correct answer.

(c) Only three
Under the Doctrine of Limited Government the powers of the government are limited by various factors such as Fundamental Rights, Rule of Law, Federalism, Separation of Powers, Judicial Review, etc. People are not responsible to the government, but it is the government that is responsible to the representatives of the people elected to the legislature.
There are two similar concepts – Rule of Law and Rule by Law.
The Rule of Law refers to the governance in which the Rule is based on the Law of the land. In other words, how the governments shall behave and conduct themselves shall depend on the Constitution.
In the case of Rule by Law, it is the Law which is dependent on the Rule. A constitution shall be kept in its form as long as it is helping the rulers to rule the way they want to. If it is no more useless then it shall be replaced with a new law.
In first condition, law is all powerful, and in another it is the Rule. In Rule of Law, there are certain powers and privileges which are given to individuals, no rule can inhibit those rights.

(b)
Legal tender is any official medium of payment recognized by law that can be used to extinguish a public or private debt, or meet a financial obligation. A creditor is obligated to accept legal tender toward repayment of a debt. Legal tender can only be issued by the national body that is authorized to do so.

(b) Jainism
Sthānakavāsī is a sect of Śvētāmbara Jainism founded by a merchant named Lavaji in 1653 AD. It believes that idol worship is not essential in the path of soul purification and attainment of Nirvana/Moksha. The sect is essentially a reformation of the one founded on teachings of Lonka, a fifteenth-century Jain reformer. Sthānakavāsins accept thirty-two of the Jain Agamas, the Śvētāmbara canon.

(d) Neither 1 nor 2
Manufacture of solar panels (also called modules) starts with polysilicon, which is made from silicon. Polysilicon is made into ingots, which are cut into wafers. Cells are made with wafers and a string of cells is a module. Today, only modules and cells are made in India, with imported material. At present, the only incentives available for manufacturing these is the Modified-Special Incentive Package Scheme, which is available to all electronic goods manufacturers and implemented by the Ministry of Electronics and Information Technology, but there have been few takers for the scheme. (Statement 1 is incorrect).
“Solar Energy Corporation of India Ltd” (SECI) is a CPSU under the administrative control of the Ministry of New and Renewable Energy (MNRE). It aims to become the leader in the development of large scale solar installations, solar plants and solar parks and to promote and commercialize the use of solar energy to reach the remotest corner of India. It also explores new technologies and their deployment to harness solar energy. Solar Power tariffs are determined either through the regulations of Central Electricity Regulatory Commission/State Electricity Regulatory Commission or through competitive bidding. (Statement 2 is incorrect).