A．He felt his assignment was tougher than Sue’’s.
B．His clients complained about his service.
C．He thought the boss was unfair to him.
D．His boss was always finding fault with his work.

A．reactions of humans and animals to dangerous situations are often unpredictable
B．memories of significant events enable people to control fear and distress
C．people’’s unpleasant memories are derived from their feelings of fear
D．the amygdala plays a vital part in human and animal responses to potential danger