A Genotypic Source of Refusals Refers to

A genotypic source of refusals refers to

A) the indigenous characteristics of respondents such as age, sex and occupation)
B) characteristics of the data collection procedure questions asked, length of the interview)
C) respondents who refuse to clarify their answers and who seem anxious to end the interview.
D) respondents who forget how many times in the past month they have been shopping and who underestimate or overestimate the number of
Times when asked.
E) None of the above.