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 C will perform third.b. Comic D will perform second and Comic A will perform fourth.c. The comedians will perform in the following order: C, D, A, E, B, F.d. Comic B or Comic F will perform last.