Which of the following are the actions of an ethnographic researcher?

(A) He gets immersed in the Social Setting.

(B) He avoids collecting documents about the group members he is researching upon.

(C) He observes the behavior of group members.

(D) He listens to their conversation.

(E) He does not interview the participants when they are not amenable to observation.

Choose the correct answer from the options given below: