The poet's use of quotation marks and dramatic shift in word choice in this excerpt from "Attack the Water" suggest that these words are coming from another source, such as the news.
This accounts for the change in word choice, as the news, would have been written or spoken by someone else. Also, adding this to the poem helps describe the situation in Vietnam from an outside standpoint.
Your answer would be B. He's talking about not being able to prove his age because he hasn't never seen a real record of his birth or anything else that would give him an idea of how old he is, so no real way to actually prove it.
I would say A because the roar of the crowd cant "rumble" over the stadium.
