I don't see the passage, but an antagonist is a villain, or in other words a negative role.
Nixon was already President of the United States when he and his staffers broke the law in the
Watergate scandal. What about their positions of power may have contributed to their
corruption?
B) Summarizing the text that the group has read
C) Sharing an idea, claim, or theory about the story
D) Asking other participants questions about what they feel
I’m pretty sure the answer is, It gives more precise examples of how musical training can change the brain.