Answer:
A. I want to try out for the team.
Explanation:
Infinitive phrases use "to" with a verb. Verbs are action words.
"to try" is a verb in the infinitive form.
B. "to a fault". A fault is a noun, a thing.
C. "to Toronto". Toronto is a noun, a place.
D. "to college". College is a noun, a place.
If you study French, verbs you learn are always "to" something in the "infinitif" before conjugating. That may help you remember.
