He could not find a hint; He could not find a sign; He could not find a trail; He could not find a clue.
D) an independent clause
hope this helps:)
The answer should be B) It reveals the characters' actions in response to the climax.
B is correct answer.
Couplet is a rhyming words from at the end of 2 consecutive lines.
Hope it helped you.
-Charlie
Thanks!