The Main Difference Between Focus Groups and In-Depth Interviews Is

The main difference between focus groups and in-depth interviews is ________.

A) focus groups look at differences between men and women while in-depth interviews do not
B) focus groups involve professional researchers while in-depth interviews can be done by novice and student researchers
C) focus groups use a moderator to lead a group conversation while in-depth interviews are typically one-on-one
D) focus groups use unobtrusive observation to look at interactions while in-depth interviews use more interactive research techniques