-
A
Drinking water
-
B
Fatigue, certain medications, or illness
-
C
Eating a large meal
-
D
Sitting down
Why this is the answer
Factors such as fatigue, certain medications, illness, and dehydration can increase the effects of alcohol on a person, sometimes making them appear more impaired than their drink count alone would suggest. Many medications interact with alcohol to intensify impairment or cause dangerous reactions. Because servers cannot know a customer's full medical situation, they should base service decisions on observed signs of impairment rather than assuming a certain number of drinks is 'safe.' Awareness of these amplifying factors supports careful monitoring.
Source: Responsible Beverage Service — Factors Increasing Effects