A manager wants to gauge employee satisfaction at a company. She hands out a survey questionnaire to everyone in the human resources department who were hired in the past two years. The employees must respond to the questionnaire within five days. What type of bias are the survey results at risk for?

A.
The survey results are at risk for nonresponse bias and undercoverage.
B.
The survey results are most at risk for nonresponse bias.
C.
The survey results are most at risk for undercoverage.
D.
The survey results are not at risk for any bias.