All of the Following Are Examples of Advantages of Using

All of the following are examples of advantages of using in-home interviewing to collect research data EXCEPT:

A) it enables the interviewer to provide clarifications to the respondent, allowing for complex questions.
B) it permits the use of physical stimuli and allows the interviewer to display or demonstrate the product.
C) it provides very good sample control since homes can be selected without generating a list of all the homes in a given area.
D) it allows for longer interviews.
E) it permits easy interviewer supervision and control as the interviewers are traveling door-to-door.