C. that is your answer because as your heart contracts, blood flows and IF your heart is not strong enough, it will be hard to breathe.
Hypothermia occurs when a low internal body temperature interferes with the body's ability to regulate vital processes, such as metabolism and the heartbeat. One risk for hypothermia is getting wet, which vastly increases heat loss in the cold.
From your post, this looks like a True or False question. The answer is True.
Under the foreskin of an uncircumcised penis.
C. All staff members but possibly B. One in each class. However I believe C is most correct from what I know in my school district.