I agree that 4 is correct. So I should tell you why 5 is incorrect, right?
Behavioral economists have determined that anger, which makes people assesss situations more optimistically, downplay risks, and potentially overestimate the benefits, ahs the opposite effect of fear.
The point is on the fact that anger makes people assess situations more optimistically. Otherwise it would have been 'downplays risks, and potentially overestimates the benefits'.
I'm sure you'll have loads of different answers from the experts.
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