A few synonyms for this answer could be, crusade.
C would be my best guess but idk.
Answer:
What is Enya’s intention for locating Zack’s Earth Science materials?
To work extra hard.
How does Enya use Zack’s Earth Science materials to help her study for her first and second quizzes?
She covers the answers and guess the answer seeing if she had them right.
I Think The answer is c hope it helps Trying To help anyone That I can