Which of the Following Statements Is TRUE of Focus Groups

Which of the following statements is TRUE of focus groups?

A) The sessions are easy to moderate.
B) It is difficult to support a preconceived position because focus group members have different attitudes on most subjects.
C) The results of sessions are representative of the general population.
D) Coding, tabulation, and analysis of responses is difficult in comparison to a written survey.
E) They are all true.