B Many public libraries in the S
First you figure out its context then after that find out some of its context clues and this should help you out.
The technique that the poet use to communicate the speakers critical attitude towards war in the story is letter B. Kaspar repeatedly refers to the famous batle but admits that he cannot recall why it was fought. I hope you are satisfied with my answer.
When Ponyboy says this phrase he means that they don't need to say words to share the problems they have in their life. Both of them have problems so they understand each other like no on do : Johny's parents do not pay attention to him; Pony must live his life with a big loss - death of his parents. So they both know how life can be unfair sometimes.