Answer and Explanation:
Based on the information given about Trish, we can consider that she is the opposite of a composed person. In this case, we can say that she is an agitated person, does not seem calm and is very nervous in different situations. Trish is unable to maintain a serenity when being evaluated or pressured for something, but shows that she is experiencing strong emotions, may even lose control and be unable to behave properly.
Theseue should be the correct answer.
C uses correct parallel structure.