Regarding the development of posttraumatic stress disorder (PTSD):

A. Genetics is responsible, as indicated by the presence of the COMT enzyme that destroys catecholamines.
B. The environment produces individuals who are more likely to experience PTSD, as evidenced by the fact that people who experience more traumatic events are more likely to be affected.
C. The risk for developing PTSD depends on both genetic and environmental factors.
D. The Val158Met polymorphism is responsible.


Answer: C

Psychology

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