A.
B and C don't provide as many things that an athlete must do, and D doesn't clarify what it means by "listen"
Write about your day or something like that
"Juanitas good driving prevented an accident." I think ..... verb is "to prevent" as you say. accident could be a noun and thus an object, possibly a direct object. verb "to drive" written as "driving" is, I think, a gerund (which is a verb used as a noun). maybe "helping verb" and "gerund" are similar ? I think that "an" is an article of the noun "accident". Definite would be "The accident.". Indefinite would be "an accident". I think....