An accounting firm with 20 employees has 8 portfolio managers and 6 tax experts. The remaining employees have expertise in other fields. Six employees will be randomly selected to represent the firm in a "Donation for Christmas" drive.

a) Are the outcomes of the selection equally likely to occur? Explain.

b) Briefly explain why a random selection of six employees is NOT a binomial experiment.

c) What is the chance that the individuals selected consist of three portfolio manager, one tax expert, and two employees with expertise in other fields?