If an adult chooses to consume alcohol and then drive, which is the most important rule to follow? drive very slowly. take turns, switching drivers often. designate a driver who is not drinking. allow driving if the person only had a few drinks.

Designate a driver who is not drinking is clearly the best option, Someone who hasn't drank at all would be a better driver than someone who has drank even a little.

C designate a driver who has not been drinking ^V^

Well, l think that some effective communication is, emotional barriers and lack of attention, interest distraction or irrelevance. also some physical disabilities such as hearing problems or speech difficulties.      l hope i am correct  and you good luck.