Tamara is deathly afraid of coming in contact with germs. So, her therapist gradually exposes Tamara to "unclean" things, such as touching dirt or taking a bite of an unwashed piece of fruit, while in a calm, relaxed, and supportive environment. This technique is known as:.
a. systematic desensitization.
b. vicarious conditioning.
c. spontaneous recovery.
d. modeling.

a. systematic desensitization.                  

Explanation:

Systematic desensitization: In psychology, the term "systematic desensitization" is described as one of the 'behavioral techniques" that is being generally used by different psychologists to treat phobias, fear, and anxiety disorders.

A psychologist who uses systematic desensitization on his or her clients engages the client in a few relaxation exercises and then eventually expose the client to a distinct "anxiety-provoking stimulus" such as place, object, etc.

Goal: It is considered as one of the therapeutic interventions that help in eliminating anxiety or fearful situations.

In the question above, the given technique is known as systematic desensitization.

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !

answer; i believe the correct answer is (federalist);