An interjection is a word that is an abrupt remark. For example, Yikes! and Hey! are interjections.
A. isn't your answer because it is only a sentence in exclamation.
B. isn't your answer because it is only a sentence in question.
C. isn't your answer because it is just a normal sentence. Nothing in it is an interjection.
D. is your answer because Whoa! is an abrupt remark which is an interjection.
Yay!, hoped I helped! (Yay! is an interjection.) :D
