Which type of sentence is used to pose a question?

The correct answer is interrogative. An interrogative sentence is specifically designed to ask a question, which is characterized by its structure and punctuation. Typically, these sentences begin with a question word (who, what, where, when, why, how) or an auxiliary verb (is, are, can, will) followed by the subject and the main verb. They end with a question mark, indicating that a response or an answer is expected.

In contrast, imperative sentences give commands or requests and often lack a clear subject. Exclamative sentences express strong emotions or feelings and are punctuated with an exclamation mark, while declarative sentences state facts or opinions and end with a period. Each of these sentence types serves a different purpose in communication, but when it comes to posing a question, only interrogative sentences fulfill that role.