A sampling situation is described below:

To estimate the proportion of American adults that support changing the drinking age from 21 years of age to 18 years of age a random sample of 100 college students are asked the question "Would you support a measure to lower the drinking age from 21 to 18?"

a. Briefly describe the sample units.

b. Briefly describe the population of interest.

c. State whether or not it is appropriate, in this case, to generalize to the population of interest. Briefly explain why or why not