Part A is A. He is trying to act tougher than he really is.
Part B is C.
This is from to Kill a Mockingbird
1.Collapse
2.coo
3.Chime
4.frolic
5.foretell
6.modest
7.energetic
8.click
9.ambitious
10.dignified
11.clatter
12.rustle
13.brew
14.slurp
15.crunch
16bravery
17.clomp
18.squish
19.screech
20.lunge
Jerry & Astros are both nouns
I believe the answer is 1, allows the reader to approximate the meaning of an unknown word.
