I believe the answer to this question would be c
The answer is the endogenous opiate.
The human body naturally produces its own opiates like substances and uses them as neurotransmitters. These substances include endorphins, enkephalins, and dynorphin, often collectively known as endogenous opioids. Endogenous opioids modulate our reactions to painful stimuli.
You have not added the figures, So I can’t answer
The answer is C) milky way. Earth lives in the galaxy, which is apart of the milky way.
~Deceptiøn
