Impaired brain function as a result of drug use involves all of the following except:
a. increased confusion
b. errors in judgment
c. memory loss
d. increased concentration

The correct answer is D.

Impaired means weakened or damaged. Drug use can cause impaired brain function causing increased confusion, errors in judgement and memory loss. These are all negative consequences of drug taking. Increased concentration would not be a result of drug taking, it would in fact be the opposite which would be decreased concentration.

i believe the correct answer is c