Which of the Following Best Describes the Logic of the Binomial

Multiple Choice

Which of the following best describes the logic of the binomial function?

A) the first part counts the number of ways in which exactly x successes in n trials can occur while the second part computes the probability of each of the ways in which the x successes can occur
B) the first part counts the number of ways in which exactly n successes in x trials can occur while the second part computes the probability of each of the ways in which the n successes can occur
C) the first part computes the probability of each of the ways in which the x successes can occur while the second part simply counts the number of ways in which exactly x successes in n trials can occur
D) the first part computes the probability of each of the ways in which the n successes can occur while the second part simply counts the number of ways in which exactly n successes in x trials can occur
E) none of the above