In may of 2015, muhammadu buhari became president of nigeria. as president, he is the head of state, head of government, and the leader of the executive branch of government.
using the information given, you can tell that nigeria can be classified as a
a) unitary state.
b) presidential democracy.
c) parliamentary democracy
d) constitutional monarchy.

The answer is letter B, Presidential Democracy.

Explanation:

Nigeria is a country that is located in West Africa. It used to be under a military rule. The country only became official democratic in 1999 when Olusegun Obasanjo became the President of the country. When Muhammadu Buhari became the President of Nigeria, the Day of Democracy was moved to June 12, instead of May 29.

Presidential Democracy is a state in which a country's leader is the President. The President is the head of the state and the government. He has many roles such as implementing the policy, appointing of officials, etc. He is also the leader of the Executive branch of the government, thus he oversees or supervises it. He is also involved in planning and preparing the executive budget. This should be given to the Congress, 18 months before the fiscal year starts.