Answer:
D
Explanation:
Because he is fixing the main issue and can his son will see he is trying to make up for his failures.
So I think is being is the answer
The reader has to keep very careful track of the character
The underlined term (flies) used verb+es which is used to describe the verb that still being doned regularly.
If the verb is currently being done , the verb will use-ing , if it's a plan in the future, we will see 'will' before the verb and the verb will not use -es
hope this helps