Multiple Choice
In one study, experimentally lowering serotonin levels led to:
A) decreased hostility in everybody.
B) increased hostility in everybody.
C) decreased hostility for those already high in aggressiveness and no change for those low in aggressiveness.
D) increased hostility for those already high in aggressiveness and no change for those low in aggressiveness.
Correct Answer:

Verified
Correct Answer:
Verified
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