3) Which detail from the article explains why the brain reacts instantly when it senses danger? A. This response is known as “fight or flight” because that is exactly what the body is preparing
itself to do: fight off the danger or run fast to get away.
B. As soon as the brain gets enough information to realize there’s no danger (“Oh, it’s just a
balloon bursting— whew!”), it turns off the fear reaction.
C. But the word “fear” is used in another way, too: to name something a person often feels
afraid of.
D. For example, people who fly despite a fear of flying can become used to unfamiliar
sensations like takeoff or turbulence.

A. This response is known as “fight or flight” because that is exactly what the body is preparing

itself to do: fight off the danger or run fast to get away.

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