The "rate of absorption": A. Has to do with how quickly alcohol enters the bloodstream B. Has to do with how quickly alcohol is processed by the kidneys.

a. Has to do with how quickly alcohol enters the bloodstream.

Explanation:

The rate of absorption is the speed at which certain alcohol molecule travels from inside the intestine though the blood circulation. This rate can be modify with other beverages (like oil) that can longer the normal speed or the environmental weather, for example, if it is so sunny, more quantities of drugs will be necessary.