Which of these is an example of a random sample?
A.
Mrs. Baker selects the 10 students who arrived to class first on Monday to fill out a survey.
B.
Mrs. Baker selects the 10 students who raised their hands to volunteer to fill out a survey.
C.
Mrs. Baker selects the 10 students whose names are drawn from a bag to fill out a survey.
D.
Mrs. Baker selects the 10 students with the highest grade point averages to fill out a survey.