Zelda visits a therapist for treatment of her anxiety. Her therapist teaches her to relax on a couch while working her way through a fear-stimulus hierarchy. Eventually, Zelda is able to remain calm in each of the situations presented in the hierarchy. Her therapist used a technique called

Systematic Desensitization.

Explanation:

This form of therapy is normally based on classical conditioning.

Systematic desensitization

Systematic desensitization falls at the other end of the dimensions of exposure methods, using brief, imaginal, and minimally arousing exercises. Systematic desensitization was among the earliest behavioral treatments studies for PTSD. It involves pairing imaginal exposure with relaxation, so that the anxiety elicited by the confrontation with the feared stimuli is inhibited by relaxation.

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.

the answer your looking for is c. : )