The kind of sentence that "I can't believe this is Cara's first time seeing the Pacific Ocean!" represents is this: exclamatory
What is an exclamatory sentence?
An exclamatory sentence is one that is said out of surprise or shock. In the given sentence, the presence of the exclamation mark helps the reader identify the surprise or shock of the narrator who says that he cannot believe that it is Cara's first time seeing the Pacific Ocean.
So, a quick way to identify exclamatory sentences is the exclamation mark at the end. Thus, the best option is Exclamatory because of the punctuation at the end.
Complete Question:
What kind of sentence is this?
I can't believe this is Camille's first time seeing the Pacific Ocean! declarative. interrogative. exclamatory