Who would have a higher pulse pressure: a resting athlete or a resting couch potato. Why?

The resting couch potato.

Explanation:

Someone who is fairly inactive, compared to an athlete, would have a higher resting heart rate. When athletes train, especially athletes who train their cardiovascular system, they are training their heart to be more efficient. In doing so the heart doesn't need to beat so quickly to get the same result.

answer; (c); /out to the side and directly under the dogs neck.