You decide to conduct a survey on your campus. The survey asks, "How do you feel about killing animals for food?" You happen to be wearing a fur coat on the day that you administer the survey. What is the problem with this design?
A) Response bias—the respondents already have a general idea on your opinion based on the fur coat.
B) Undercoverage—the study should be based on all adults and not just students.
C) A poorly worded question—the survey should ask "Killing animals for food is acceptable, right?"
D) There are no problems with the study.