When Pollsters Conduct Telephone Polls, They Typically Use Random-Digit Dialing;

Multiple Choice

When pollsters conduct telephone polls, they typically use random-digit dialing; however, some people refuse to cooperate and answer the questions, and others are not at home when called. This results (or may result) in

A) coverage error due to an incomplete sampling frame.
B) an increase in random sampling error.
C) nonresponse error or sample bias.
D) measurement error.