Answer:
the last one is the correct one
The summary of what happened is right here: https://www.sparknotes.com/lit/gatsby/section7/
The answer is D because the proper sentence would be; With a squeal and a giggle, the wave came in, and the boy GOT soaked. Became soaked, would mean that he got soaked in the PAST tense, and he just randomly became soaked. So yes, as you assumed, the answer is D
I'm pretty sure the answer is A. It makes sense if you think about, to be fair I have never read it after hear so many summaries on it I am confident in the answer.
