The correct answer is option 'C' - Sovereign, Socialist, Secular, Democratic, Republic.

Explanation:

1. Sovereign:
The term "sovereign" means that India is an independent nation and has the authority to govern itself without any interference from external forces. It implies that India is not under the control or domination of any other country.

2. Socialist:
The term "socialist" refers to the socio-economic system adopted by India. It signifies that India aims to achieve social and economic equality by reducing inequalities of income, wealth, and opportunities. India's socialist principles are reflected in various policies and programs aimed at reducing poverty, promoting social justice, and ensuring equitable development.

3. Secular:
The term "secular" implies that India does not have any official state religion. The country treats all religions impartially and provides equal rights and privileges to all its citizens, irrespective of their religious beliefs. The secular nature of India is enshrined in its Constitution, which guarantees religious freedom and promotes tolerance and harmony among different religious communities.

4. Democratic:
The term "democratic" signifies that India is a democracy, where the power to govern lies with the people. The Constitution of India establishes a representative form of government, where citizens elect their representatives through free and fair elections. It ensures the participation of the people in decision-making processes and protects their fundamental rights and freedoms.

5. Republic:
The term "republic" denotes that India has an elected head of state, who holds the position for a specific term. In a republic, the head of state is not a hereditary monarch but a person chosen by the people or their representatives. In India, the President is the head of state and is elected by an electoral college comprising members of Parliament and state legislatures.

The Preamble to the Constitution of India serves as an introductory statement and reflects the ideals and aspirations of the people of India. It outlines the basic features and objectives of the Indian Constitution, which include sovereignty, socialism, secularism, democracy, and republicanism. These principles form the foundation of the Indian polity and guide the functioning of the government and the rights and responsibilities of its citizens.

Sovereign because the state will decide its decision itself will not be under the control of anyone.
socialist because it included the socialistic principles in the constitution under DPSP.
Secular because each everyone can practise the religion which they like the state will treat everyone as equal irrespective of their religion.
Democratic because we have the elected government by the people which indicates democracy
Republic because we have followed all these formally since jan 26,1950 (republic day)