Answer:
C: Interrogative Sentence
Step-by-step explanation:
Not A: It's a phrase, and this is a sentence. The difference is a phrase doesn't make sense outside of the sentence it's in and doesn't have punctuation that ends a sentence. An adverbial phrase adds meaning to what is talked about in the sentence, like "during the week," "earlier today," and so on.
Not B: At this point, the type of sentence is based on the punctuation. It needs to have an exclamation mark at the end to be exclamatory.
Not D: C is right, so it's not this.
C is right: If it has a question mark, it is interrogative. An interrogation is asking a question, so that's where it comes from.