Question

what is the gist of the part of the passage in the box? signals in the nervous system work better when humans listen carefully to them. the brain controls how loudly people shout when they are hurt. the brain always lets the body know when it has been injured. signals in the nervous system help the brain communicate with the rest of the body.

Explanation:

To determine the gist, we analyze each option:

• Option 1: Talks about listening to signals, which is not the main idea here.
• Option 2: Focuses on shouting when hurt, irrelevant to the nervous system's role.
• Option 3: Says the brain "lets the body know" about injury, but the key is communication via signals.
• Option 4: Correctly states that nervous system signals help the brain communicate with the body, which aligns with the typical role of the nervous system (transmitting signals between brain and body).

Answer:

D. Signals in the nervous system help the brain communicate with the rest of the body.