Angelito,hope this helps!
did you try google translator?
Answer:
An MLB Superstar.
Explanation and translation:
Because in one part of the text it says the following:
My dad prefers to play baseball in the backyard of our house. With his glove and his bat, he thinks he is one of the superstars of some major league team.
Greetings.
The correct answer is quieres because that is the conjugation of querer when the subject is tú.