In Conducting Field Interviewers, the Researcher

In conducting field interviewers, the researcher:

A) needs to select locations and times that are comfortable and convenient for the interviewers.
B) should not be concerned about time.
C) should avoid establishing a frame of reference for the respondent so to be able to capture his or her spontaneous reaction and answers.
D) should follow the interview guide in exactly the same way in each interview.
E) none of the above.