Once in a While, We Hear Amazing News Reports of People

Once in a while, we hear amazing news reports of people who have cut off an arm or a hand in farm equipment, picked up the severed appendage, and walked a significant distance for help. Though upon hearing these stories, most people wonder how the survivor could have endured the pain long enough to find help, we know that the body can produce morphinelike chemicals called

A) analgesiacs.
B) adaptors.
C) endorphins.
D) transtheoreticals.