The verb mood used for asking a question is interrogative.
The verb mood that is used for asking a question is the interrogative mood. To determine the correct answer, you can look for clues within the question itself. In this case, the question is asking specifically about the verb mood used for asking questions. The word "interrogative" refers to questioning or asking, so it indicates that this is the correct option. The other options - subjunctive, imperative, and conditional - do not pertain to asking a question.
