Which of the Following Is TRUE

Which of the following is TRUE?

A) It is generally true that bias caused by interviewer expectations will balance out if a sufficiently large number of interviews is used.
B) The behavior of either interviewer or respondent occurs merely as a physical reaction to the behavior of the other.
C) Questions which state the alternative answers and multiple choice questions are particularly recommended in studies where personal interviews are used because they are not subject to interviewer bias.
D) The empirical evidence suggests that an interviewer with strong positive attitudes toward a particular issue will tend to secure more favorable responses than an interviewer with strong negative attitudes.
E) All of the above statements are true.