Which statement is NOT true about pretests?

Select one:

a. It is a good practice to employ only experienced interviewers to conduct pretests.

b. To the extent possible, a pretest should involve administering the questionnaire in an environment and context similar to that of the actual survey.

c. The project director, the researcher who developed the questionnaire, and other key members of the research team should conduct some pretest interviews.

d. A variety of interviewers should be used for pretests.