Which of the Following Best Summarizes "Nonresponse Bias"? ​

Multiple Choice

Which of the following best summarizes "nonresponse bias"? ​

A) a tendency for samples to differ from the corresponding population as a result of systematic exclusion of some part of the population
B) a tendency for samples to differ from the corresponding population because data are not obtained from all individuals selected for inclusion in the sample
C) a tendency for samples to differ from the corresponding population because the method of observation tends to produce values that differ from the true value
D) a bias on the part of the researcher towards those who chose not to participate in a survey
E) None of these describes nonresponse bias.