Endorphins assists in a. regulating eating behavior and how we respond to stress b. movement and attention c. muscle action and memory d. learning and attention

The answer is A. regulating eating behavior and how we respond to stress.

Endorphins are endogenous neuropeptide compounds produced by the hypothalamus and pituitary glands. They are also called body's natural opiates. Their effects are euphoric and analgesic and they regulate eating behavior and response to stress. Since they act as analgesics, they reduce a pain perception. Also, they trigger euphoric feeling, so their effect is euphoric. 

I’m going to go with b!