Question

which choice best states the main purpose of the text? a it presents a study to show how doctors are doing to start prescribing electrical brain stimulations instead of anesthetics. b it informs readers of a study performed at stanford university showing how the anterior precuneus helps narrate itself. c it explains how a study showed that the anterior precuneus tricks the body into thinking it’s floating or falling even when it’s still. d it argues that brain stimulations are better than anesthetics when tricking the brain into thinking something painful is fine.

Explanation:

To determine the main purpose, we analyze each option:

• Option A: The text likely doesn't focus on replacing anesthetics with electrical brain stimulations, so A is incorrect.
• Option B: The "helps narrate itself" is unclear and not a typical focus of such a study, so B is incorrect.
• Option C: This option aligns with a study explaining how the anterior precuneus tricks the body's perception (floating/falling when still), which is a plausible main purpose.
• Option D: The text probably isn't arguing for brain stimulations over anesthetics for pain, so D is incorrect.

Answer:

C. It explains how a study showed that the anterior precuneus tricks the body into thinking it’s floating or falling even when it’s still.