Final answer:
The answer is an injunction, which is a court order that either stops a party from taking an action or compels them to take an action.
Step-by-step explanation:
An injunction is a court order which either restrains a party from doing something or requires a party to do something. Therefore, the correct answer to the question is A) Injunction. In contrast, an affidavit is a written statement confirmed by oath or affirmation, used as evidence in court. A writ is a formal written order issued by a body with administrative or judicial jurisdiction; for example, a writ of certiorari is an order of the Supreme Court calling up the records of the lower court so a case may be reviewed. A summons is a document issued by a court that notifies an individual of a legal proceeding involving them and requiring their presence.