Question

Students in a class are asked to raise their hands if they have cheated on an exam one or more times within the past year.
A. This is not a decent question to ask in class.
B. This kind of question should be asked out of class, where students are free from concern about their teachers listening.
C. Stratified random samples must be chosen from the school in order to obtain reliable data.
D. This question invites a biased response, since honest answers are not likely to occur.