He reads, educates himself
His proclamation changed the minds of many Americans who supported the war in Vietnam which caused many politicians to change their views on the war as well. A famous example would be Lyndon B. Johnson who decided not to run for another mandate.
Answer:
A!!! to establish the idea that Alfonso cares a lot about how other people see him
Explanation:
"trying to push his crooked teeth to where he thought they belonged"
"girls in cut-offs would notice"
I would choose "A" the best even though "C" also makes sense but not as much as "A" does. hope it works. :)