Final answer:
A therapist who uses the technique called "flooding" would take him to the top of a mountain (option B).
Step-by-step explanation:
A therapist who uses the technique called "flooding" would take him to the top of a mountain (option B). Flooding is a form of exposure therapy where the individual is exposed to the feared situation at its maximum intensity until the fear response decreases. In this case, the therapist would expose the man to heights by taking him to the top of a mountain, which would help him confront and overcome his fear.