What Is One of the Conclusions Generally Drawn from the 1990s

Multiple Choice

What is one of the conclusions generally drawn from the 1990s studies of OCD, brain imaging and cognitive-behavioural therapy by Baxter et al., and the follow-up studies by Schwartz et al.?

A) Neurotransmitters affect how people feel and act.
B) Drugs are the only way to impact faulty neurotransmitter circuits.
C) Neurotransmitters are a result of how people feel and act, not a cause.
D) Psychosocial factors such as therapy affect neurotransmitters.