The homecoming dance committee plans to conduct a survey to determine the student body's opinion on a theme for the dance. Which sampling method
would be most likely to result in nonresponse bias?
A. Handing a survey to all the students who attended the previous
year's homecoming dance
B. Entering a second-period math class and surveying all the
students in that class
C. Standing at the school entrance and surveying every 5th student
that walks in
D. Emailing a survey to all students, but only freshman girls respond