Correct option is D
India is a sovereign country: This means that India is independent and free from external control, with the power to make its own decisions in both domestic and foreign affairs. This is guaranteed by the Preamble of the Constitution.
India is a welfare state: As per the Directive Principles of State Policy in the Constitution, India aims to provide a welfare state, ensuring social and economic justice for all its citizens, and promoting the welfare of the people.
India is a republic country: India is a republic because it has an elected head of state, the President, who holds office for a fixed term. There is no hereditary monarchy.
India has a democratic polity: India operates under a democratic system, meaning that the government is elected by the people. The Constitution provides for regular elections, a multi-party system, and guarantees fundamental rights that protect democratic governance.