Six stand-up comics, A, B, C, D, E, and F, are to perform on a single evening at a comedy club. The order of performance is determined by random selection. Find the probability that
a. Comic B will perform fourth
b. Comic C will perform last and Comic Dwill perform fourth.
c. The comedians will perform in the following order B, C, D, F, E, A
d. Comic E or Comic A will perform last.
