I believe the correct answer is C.
Answer:
D because we are focusing on sharks here and nothing else
I would say the answer is, "Performing on math tests, developing good work habits, and studying every night."
18. D - Perilous means dangerous, as does hazardous.
19. D - Toiled is a synonym for working.
Answer:
B
Explanation:
This is an excerpt from The Walrus and The Carpenter