In “Mendel Prepares,” which of the following BEST supports the inference that Mendel’s failure when taking oral exams made him determined to learn to speak to a large audience?

A
I was a good student during each of my periods of study, but the final oral exams always caused me such fear that I failed them.

B
I could never fulfill my goals as my own weaknesses came between me and success.

C
This time, I must be able to speak my thoughts and answer questions with clear and precise details.

D. Today I vow to present my findings and to persuade the other biologists attending that my experiments explain the seemingly random appearance of certain traits in the living offspring of their parents.