Suppose that a defined population is all left-handers, and a survey is being
conducted. Which of these is an example of selection bias?
A. Excluding right-handers from the selection process of the survey
B. Excluding left-handers over six feet tall from the selection process
of the survey
C. Including right-handers in the selection process of the survey
D. Including left-handers over six feet tall in the selection process of
the survey
