Nina was driving her car when she suddenly noticed a cat running across the road. She immediately braked the car and narrowly missed hitting the cat. She could feel her heart pounding, and her hands started sweating. In the given scenario, what divisions of Nina's nervous system was active?

Well it would be her heart and brain because her brain nerves are telling her heart to pound and sound like she is scared

Explanation:

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."