Answer:
A.Better
Explanation:
Better in this sentence is referred to the word must or "have to" therefore, the correct grammar is indeed A.
Answer:
maze
Explanation:
The definition of labyrinth alone is “a complicated irregular network of passages or paths in which it is difficult to find one's way; a maze” (dictionary) so the word maze, being in the definition, makes the most sense. An entanglement, jungle, or web doesn’t correctly define the word and wouldn’t work as replacements.
I believe it is A. I don't know what "The Odyssey" is, but I believe this is the best answer. Vain: producing no result, useless.