Given a Group of Students: G = {Allen, Brenda, Chad

Multiple Choice

Given a group of students: G = {Allen, Brenda, Chad, Dorothy, Eric} or G = {A, B, C, D, E}, list and count the different ways of choosing the following officers or representatives for student congress. Assume that no one can hold more than one office.
-Four representatives

A) ABCD; 1
B) ABCD, ABCE, ACDE, ADEB, BCDE; 5
C) ABCD, ABCE, ACDE, ADEB; 4
D) ABCD, ABCE, ACDE, ADEB, BCDE, BCEA, BDEA, CABD, CEDB, DACE; 10