This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Drug Abuse, Subject name: Forensic Medicine
Chronic disorder characterised by compulsive use of drugs resulting in physical, psychological and social harm and continued use despite evidence that is harmful is called as 
Select and explain. 
A. Substance intoxication, B. Drug addiction, C. Drug abuse, D. Drug dependence
B: Drug addiction
Answer: B: Drug addiction 
Explanation: Addiction is defined as a chronic disorder characterised by compulsive use of drugs (craving) resulting in physical, psychological and social harm, and continued use despite evidence of that harm. Drug habituation is a condition resulting from the repeated consumption of a drug, in which there is psychological or emotional dependency on the drug.Caffeine and nicotine are habit-forming drugs