A computer is programmed to generate a sequence of three digits, where each digit is either 0 or 1, and each of these is
equally likely to occur. Construct a sample space that shows all possible three-digit sequences of 0s and 1s and then find
the probability that a sequence will contain exactly one 0.

A. 000, 001, 010, 011, 100, 101, 110, 111; the probability is 7/8

B. 001, 011, 101, 111; the probability is 2/8

C. 000, 010, 011, 101, 111, the probability is 2/8

D. 000, 001, 010, 011, 100, 101, 110, 111, the probability is 3/8