When Interviewing Someone as Part of the Job Analysis Process

When interviewing someone as part of the job analysis process it is best to:

A) start immediately with a set list of questions.
B) let the conversation go where it may, allowing the interviewee determine what is discussed.
C) not allow follow up questions as it could alter the results.
D) design a list of specific questions in order to compare responses of all interviewees.
E) go with the interviewees first response and not make corrections to their statements.