Questions: A state of indifference and inactivity.

The answer is Apathy.

Closed primaries are a type of primary election in which only registered party members can vote to choose their party's candidate. This option does not relate to a state of indifference and inactivity.

Apathy refers to a lack of interest, enthusiasm, or concern. It is a state of indifference and inactivity, making it the correct answer.

Noncombatants are individuals who are not engaged in fighting during a conflict, such as civilians or medical personnel. This term does not describe a state of indifference and inactivity.

Terrorism involves the use of violence and intimidation, especially against civilians, in the pursuit of political aims. This term is not related to indifference and inactivity.