In the post test only design
Answer:
C. systematic desensitization
Explanation:
systematic desensitization is a form of behavioral treatment that is carried out by exposing the patients to the source of fear in a controlled manner. The intensity of the exposure usually will start really small and will be increased as the treatment goes on. Over time, the patient will be used to confronting the source of fear and the fear will eventually reduced / went away.
This can be seen in what the Therapist did to Kayla. He asked her to think about her fears and tried to relax in that situation before eventually move up to asking her to use crowded elevators to conform her fear of closed spaces.
The difference between science and pseudoscience is that science organizes knowledge in testable explanations and predictions about the universe while a pseudoscience is is a claim or a belief which is carried out as scientific but has no valid [ scientific method, not reliably tested. ]