Alexis was diagnosed with obsessive compulsive disorder (ocd) because she checks the locks on her house and car many times before she can leave. her therapist asks her to lock a door then takes away the keys so alexis cannot lock the door again. taking away the keys is and locking the door is

I believe the answer is: response prevention; exposure

In this context, response prevention refers to every efforts that initiated by patient to prevent the repetitive obsessive behavior from occurring.
Exposure on the other hand, refers to the things that might trigger the repetitive obsessive behavior from occurring.

Low risk and moderate growth.