There is a Parliamentary System of Government in India because the

The correct answer is (D) because the defining feature of a parliamentary system is the collective responsibility of the executive (Council of Ministers) to the legislature (Lok Sabha), as mandated by Article 75(3) of the Constitution. While option (A) is a feature of Indian democracy, it is not the defining characteristic of a parliamentary system since direct elections to the lower house also occur in presidential systems. The core concept being tested is the "principle of collective responsibility," which ensures the executive remains in power only as long as it enjoys the confidence of the popularly elected house.