Answer:
It's A. But in the carribean its called "football" .
Explanation:
B. tu piensas
c and d are talking to more than one person
a is talking about one person but it is refering he or she, el o ella
b is for you, tu
Do you have an additional information?
Q1.) I believe it would be <em>Soy</em>
Q2.) <em>somos</em>