A character in a work of fiction has a reason for what they do, this is called motivation.
preposition = under
object of the preposition = covers
Attach an image. We can’t see the actual text therefore cannot answer you question.
Answer:
A. The team was not working together therefore more practice will be needed before the next game.
Correction:
A. The team was not working together; therefore, more practice will be needed before the next game.
Explanation:
B. correct
C. correct
D. comma splice