Which of the following is not a reason given above for why it seems that classroom learning could not impart virtue?

a. You can’t teach someone to be a good athlete by classroom learning, and similarly you can’t teach someone to be virtuous in that way.

b. Classroom learning by its nature produces conformity, but ethics implies individuality.

c. Classroom learning can at best change how we think, but thoughts are powerless to oppose strong impulses.

d. Classroom learning helps us to think or speak better, but ethics involves acting better.