Answer:
C. systematic desensitization.
Explanation:
Systematic desensitization is a behavioral therapy by which an individual is gradually exposed to what seems to be causing a fear or anxiety, by engaging in a kind of relaxation technique that helps to reduce or overcome that fear or anxiety.
This therapy was developed by Wolpe. The major aim of systematic desensitization is to treat phobia and anxiety disorders, and so far, this method has proven effective.
Therefore, Jonathan's therapist technique best illustrates the process of systematic desensitization.