When Playing Cards, Tom Noticed That He Can Do Pretty

When playing cards, Tom noticed that he can do pretty well for himself unless he has an audience. Then, it becomes more difficult for him to get the right cards out of his hand in a timely manner. Which of the following is NOT an explanation for Tom's difficulty?

A) neural degradation
B) anxiety about performance
C) condescension on the part of the other players
D) self-expectation that he won't do well