The correct answer is option 'B': The President of India is the Head of the State. Let's understand this answer in detail.

Explanation:
1. Head of the State:
The President of India holds the position of the Head of the State. As the Head of the State, the President represents the country both nationally and internationally. The President is the symbol of the nation and exercises various constitutional powers and duties.

2. Role and Powers of the President:
The President plays a crucial role in the Indian political system. Some of the key powers and functions of the President include:

a) Executive Powers:
The President appoints the Prime Minister and other members of the Council of Ministers on the advice of the Prime Minister. The President also appoints Governors of states, judges of the Supreme Court and High Courts, and other high-ranking officials. The President is the Commander-in-Chief of the Indian Armed Forces as well.

b) Legislative Powers:
The President summons and prorogues sessions of both Houses of Parliament - the Lok Sabha (Lower House) and the Rajya Sabha (Upper House). The President also addresses the Parliament at the beginning of each session. All bills passed by Parliament require the President's assent to become law.

c) Diplomatic Powers:
The President represents India in all diplomatic and international affairs. The President receives credentials from foreign ambassadors and high commissioners. The President also represents India at state functions and ceremonies.

d) Judicial Powers:
The President has the power to grant pardons, reprieves, respites, or remissions of punishment to individuals convicted of offenses. The President's power of pardon is derived from the Constitution of India.

3. Role of the President in the Parliament:
While the President is not directly the Head of the Parliament, the President's role is important in the functioning of the Parliament. The President appoints the Chairman and Deputy Chairman of the Rajya Sabha. The President also nominates members to both Houses of Parliament, including members with special knowledge or experience in literature, science, art, and social service.

In conclusion, the President of India holds the position of the Head of the State. The President represents the country both nationally and internationally, exercises various constitutional powers, and plays a crucial role in the Indian political system.