Answer:
what do you need help with it isn't really telling me
Explanation:
I think the line 'Since he was old enough to know, big boy' is the best line in the excerpt that uses metonymy. This is because the phrase 'he was old enough' is just an expanded meaning of the phrase 'big boy' - which is what metonymy is all about.
D. suffering in war: it is explored by all cultures