Sixteen people work in an office. 10 are women and 6 are men. The flu virus is coming. (a.) In how many ways can the flu virus randomly select 5

Sixteen people work in an office. 10 are women and 6 are men. The flu virus is coming.

(a.)  In how many ways can the flu virus randomly select 5 workers out of the 16 to get sick? 

(b.) In how many ways can the flu choose 5 workers, if 2 must be women and 3 must be men? 

(c.) If the flu virus randomly selects 5 workers from the 16 in the office, what is the probability that 3 are men and 2 are women?