Endorphins are select one: a. found where neurons meet skeletal muscles b. less powerful than enkaphalins c. pain-reducing neurotransmitters d. radically different in function from neurotransmitters

Solution:

Endorphins are Pain-reducing neurotransmitters.

Because Endorphins are among the brain chemicals known as neurotransmitters, which function to transmit electrical signals within the nervous system. That interact with the opiate receptors in the brain to reduce our perception of pain and act similarly to drugs such as morphine and codeine.

Thus the required answer is C (Pain-reducing neurotransmitters).