Concept:The fusion of ceremonial and executive powers means one person performs both the role of head of state and head of government.
Explanation:In a presidential system of government, the president is both the head of state and the head of government.
This means the president combines ceremonial functions with executive powers in one office.
In a parliamentary system, these roles are separate: the prime minister is the head of government, while a president or monarch is the ceremonial head of state.
Therefore, the ceremonial and executive powers are fused in a presidential system.
Answer:A. Presidential system of government