Which of the Following Is/are Example(s) of How Gestalt Therapists

Which of the following is/are example(s) of how Gestalt therapists might use the empty-chair technique?

A) To work out a client's internal conflict.
B) To work out a client's contemporary interpersonal conflict.
C) To help bicultural clients live authentically within challenging cultural situations
D) All of the above.
E) Only a and b.