What is the name of the government in which church and state are merged?

The correct answer is Theocracy because it defines a system of government in which religious leaders control political power, and governance is based on religious law. In a theocracy, the state's authority is derived from spiritual authority, and laws are often religious edicts. This alignment of church and state results in the clergy or religious figures holding significant influence over civic matters, leading to policies and laws that reflect religious beliefs and practices.

In contrast, a democracy emphasizes the role of the people in governing, typically featuring elected representatives and individual rights, and is not rooted in religious authority. A monarchy is characterized by a single ruler, such as a king or queen, often without the influence of religious leaders as the primary governing authority. Oligarchy refers to a system where power rests with a small group of individuals, which can be based on wealth, privilege, or military control, rather than a merger of church and state.