This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
Route not used by addicts for morphine: WB 07 
Select and explain. 
A. Intravenous, B. Intramuscular, C. Subcutaneous, D. Oral
D: Oral
Answer: D: Oral 
Explanation: Ans. Oral