A nuclear power plant has double redundancy on the feed water pumps used to remove heat from the reactor core. A safely operating plant requires only one of the three pumps to be functional. Define the events A, B, and C as follows:
A: Pump 1 works properly
B: Pump 2 works properly
C: Pump 3 works properly Describe in words the following events:
a. The intersection of A, B, and C
b. The union of A, B, and C
c. The complement of the intersection of A, B, and C
d. The complement of the union of A, B, and C