Trina attempts to overcome her fear of clowns by learning how to shift from a feeling of tension to one of calm and relaxation. next, she is asked to imagine different situations, each more anxiety-provoking than the previous. she only proceeds to the next situation if she can maintain her feeling of relaxation. trina's therapist is using to remove her fear.
a. person-centered therapy
b. systematic desensitization
c. modeling
d. exposure therapy

Trina's therapist is using "systematic desensitization" to remove her fear.

Explanation:

Systematic desensitization is a sort of behavioral therapy in view of the standard of classical conditioning. It was produced by Wolpe amid the 1950s. This treatment means to expel the dread reaction of a fear, and substitute an unwinding reaction to the conditional stimulus steadily utilizing counter conditioning.

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