A patient says he is hearing a lot these days about all kinds of “CBD” oils and products. You correctly explain that CBD is also known as:

A. A dietary supplement used to supplement low calcium levels.

B. A trace mineral used to supplement various minerals in the body.

C. A cannabinoid used to self-treat nausea, vomiting, and pain.

D. The generic name cannabidiol used to self-treat mild depression.