Andrea wanted to know how much time people spend on the Internet each day. She decided she would conduct a “convenience sample” to figure this out. Which of the following would be a “convenience sample” and why?
A. Ask 20 people she sees during break.
B. Ask 20 different people from five different randomly chosen classes.
C. Pick 20 names from the school yearbook and ask those people.
D. Choose 20 names randomly from a list of all enrolled students at the school.