What group of people is this poster aimed at ? A. Mothers
B. Young men
C. The elderly

young men!

Explanation:

We want you! is talking about wanting people to join the American army and military units, and given that elderly might not be able to perform that well in general with mobility let alone running, shooting, etc. And Mothers have children to look after, so young men would be the viable option for recruits out of the options or just in general.

i think u are supposed to write a long-essay answers to the long-essay questions

a big one is

to appoint and regulate officers of the land and naval forces,

which caused much controversy ending the articles