India is afraid of snakes. her friends own snakes and she goes into a very small room with 10 snakes who are let out of their cages. the snakes slither over her. this is an example of what concept?

In vivo- exposure

Explanation:

Exposure therapy was developed to help people to face their feared objects. When someone fears some objects then they have to tend that feared objects, activities and situations. Although it reduces the anxiety and fears a person in a short period it becomes so worst if the person exposed for a long time. Psychologists make a hierarchy or a pattern to break avoidance and fear. Psychologists arrange the safest place for exposure and help the client to break the fear and avoidance.

Exposure therapy is used to treat such psychological disorder

It is a sudden facing the problem. like Indiana have fear from the snake. she has to exposed directly to the snake.  

the correct answer on edgen is:

(c.) prevent the spread of communism.

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b hope this