Which detail from paragraph 12-13 best supports the idea that Jerry acts immaturely when interacting with boys?

I'm sorry, you have not provided the answer choices for A,B, C & D.

The answer D Jerry diveed, shot pass the school of underwater swimmers, saw a black of rock looming at him, touched it, and bobbed up at once to the surface, where the wall was a low barrier he could see across.(paragrah 13)