Decide whether each experiment is a binomial experiment. If not, state the reason why.

a. Selecting 20 university students and recording their class rank

b. Selecting 20 students from a university and recording if they live on campus

c. Drawing five cards from a deck without replacement and recording whether they are red or black cards

d. Selecting five students from a large school and asking them if they are on the dean's list

e. Recording the number of children in 50 randomly selected families