Cannabinoid receptors, located throughout the body, are part of the endocannabinoid system, which is involved in a variety of physiological processes including appetite, pain-sensation, mood, and memory. Cannabinoid receptors are of a class of cell membrane receptors in the G protein-coupled receptor superfamily!
HOPE THIS HELPS!
I believe the answer would be A, intrapersonal
The best out of those options I think is "It is working, but it can take several weeks to have an effect."
Mainly because most medications take a few weeks to build up and start "working"