The paragraph that reflects a sighful moment is "Instead, I would sit by myself under a big pine tree in the courtyard, watching the other kids laugh and joke with their cliques at lunch." but she was too shy to join them. The climax is reflected in "For me, it wasn't until eighth grade that I found out how courageous I could be."
True, key words are the main words in a sentence.
I believe the answer is A. This is because the sentence is supposed to be parallel and all of the verbs(except for hiss) have to be past tense.
