The correct answer is B. A religious group assassinates a politician for demanding more separation of church and state.
Explanation
Terrorism is a form of action of a specific group that is characterized by using violence and terror to cause remembrance in the population and make a specific demand. In general, terrorist actions use systematic violence to defend their ideologies and attack anyone who is considered to be a violator or opponent of it (it can be the government, a minority group, or another). According to the above, the correct answer is B. A religious group assassinates a politician for demanding more separation of church and state because it is a violent act in response to an action that goes against the ideology of the religious group.