Which of the following sentences would most likely end in an?!

A. The flock of geese was like a checkmark in the sky

B. Most people think Saturday is the best day to go to the Festival

C. Until Leon gets here, I cannot start cooking

D. She couldn't believe it; she'd forgotten the cake

D. She couldn't believe it; she'd forgotten the cake

Explanation:

This is the sentence that would most likely end with an exclamation mark (!). An exclamation mark is a punctuation symbol that is meant to represent extreme surprise, disbelief, anger, or any other very intense emotion. It signals a change in intonation and volume. In this case, the last sentence would most benefit from it as it would express the woman's disbelief.