From Pride and Prejudice by Jane Austen

Elizabeth felt herself growing more angry every moment; yet she tried to the utmost to speak with composure when she said, "You are mistaken, Mr. Darcy, if you suppose that the mode of your declaration affected me in any other way, than as it spared me the concern which I might have felt in refusing you, had you behaved in a more gentleman-like manner." She saw him start at this, but he said nothing, and she continued, "You could not have made me the offer of your hand in any possible way that would have tempted me to accept it."

Again his astonishment was obvious; and he looked at her with an expression of mingled incredulity and mortification. She went on. "From the very beginning, from the first moment I may almost say, of my acquaintance with you, your manners impressing me with the fullest belief of your arrogance, your conceit, and your selfish disdain of the feelings of others, were such as to form that ground-work of disapprobation, on which succeeding events have built so immoveable a dislike; and I had not known you a month before I felt that you were the last man in the world whom I could ever be prevailed on to marry."
Select the correct answer.
Which detail in the passage supports the idea that Elizabeth aims to show Darcy that she is just as levelheaded?

A.
“If you suppose that the mode of your declaration affected me in any other way”
B.
“Elizabeth felt herself growing more angry every moment”
C.
“Yet she tried to the utmost to speak with composure”
D.
“She saw him start at this, but he said nothing, and she continued”