Suppose that a magazinemagazine predicted that Candidate A would defeat Candidate B in a certain election. They conducted a poll of telephone directoriestelephone directories with a response rate of 23%. On the basis of the results, the magazinemagazine predicted that Candidate A would win with 57% of the popular vote. However, Candidate B won the election with about 62% of the popular vote. At the time of this poll, most households with telephoneshouseholds with telephones belonged to the party of Candidate A. Name two biases that led to this incorrect prediction.

Choose the correct answer below.

A.
Sampling bias Using an incorrect frame led to undercoverage.
Response bias: The way the poll was administered showed bias

B.
Sampling bias: Using an incorrect frame led to undercoverage
Nonresponse bias: The low response rate caused bias

C.
Nonresponse bias: The low response rate caused bias.
Response bias: The way the poll was administered showed bias.