DrBrown Is a Firm Supporter of Cognitive-Behavioural Treatments

Dr.Brown is a firm supporter of cognitive-behavioural treatments.His patient Peter has a fear of dogs.During their first therapy session,Dr.Brown actively challenges Peter's beliefs regarding dogs and subjects Peter to many of the symptoms usually experienced in a panic disorder.In this case,Dr.Brown is using the principles of

A) aversion therapy and extinction.
B) cognitive restructuring and interoceptive exposure.
C) extinction and systematic desensitization.
D) cognitive restructuring and systematic desensitization.
E) exposure therapy and behavioural activation.