What metaphor does the author use to help readers understand how the "fight or flight" response works in humans? A) a boss calling a meeting B) the body is supercharged C) a caveman running from a tiger D) the heart is an automatic weapon

Relax

Respuesta :

Because the work of literature is not right in front of me, I cannot be sure. But D sounds correct as the metaphor. 
A caveman running away from a tiger