Which of the following caught in or caught between hazard poses the greatest risk when working in excavations and trenches?

a. being pinned
b. cave-ins
c. equipment falling into trenches
d. severing of underground utilities

is there any answer choices to this?

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.