9. which of the following is an interrogative sentence? a. they questioned where he was going. b. she isn't telling him where she is going. c. where are you going? d. don't go.

Interrogative sentences are the sentence which shows grammatically that it is a question. It expresses a grammatical interrogative mood. The interrogative sentences end with a question mark '?' and includes four types of interrogative sentences :

Tag questions

Yes/no interrogatives

Wh- interrogatives

Alternative interrogatives.

Therefore, among the option provided, a sentence which interrogative is C. Where are you going?  as it belongs to the type of wh- interrogatives and that it ends with the question mark.

the answer is somber

hello!

i don't seem to see any options! could you tell me what they are? !