In a laboratory research study involving "drug addiction" in animals, it was demonstrated that the positive-reinforcing effect (i.e., pleasure) of drugs
A)is a uniquely human weakness.
B)is primarily asocial and cultural phenomenon.
C)existed even without social and cultural influences.
D)is biological, social, and cultural.

Question

Quizplus · Accepted Answer

The laboratory research study showed that animals exhibited addiction to drugs even without human social and cultural influences, suggesting that the positive-reinforcing effect of drugs is biological in nature.

In a Laboratory Research Study Involving "Drug Addiction" in Animals