Question

read this sentence from paragraph 6 of the selection.
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.
which idea does the sentence help explain?

○ why people have different responses to fear
○ why the brain cannot understand scary situations
○ why the brain reacts instantly when it senses danger
○ why people learn to face their fears

Explanation:

1. Analyze Option A: The sentence describes the "fight or flight" response as a general bodily reaction (fight or run) to danger, not about different responses people have to fear. So A is incorrect.
2. Analyze Option B: The sentence focuses on the body's response to danger, not on the brain's ability to understand scary situations. B is incorrect.
3. Analyze Option C: The "fight or flight" response is a rapid reaction of the body (and brain) when danger is sensed, as the body prepares to fight or flee. This explains why the brain reacts instantly to danger. C matches the sentence's meaning.
4. Analyze Option D: The sentence is about the immediate response to danger, not about learning to face fears. D is incorrect.

Answer:

C. Why the brain reacts instantly when it senses danger