There are 15 members on the board of directors for a Fortune 500 company. If they must select a chairperson, a first vice chairperson, a second vice...

8. There are 15 members on the board of directors for a Fortune 500 company. If they must select a chairperson, a first vice chairperson, a second vice chairperson, and a secretary.

(a) How many different ways the officers can be selected?

(b) Please describe the method used and the reason why it is appropriate for answering the question. (Show all Work)