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: Surgery
The best site for intramuscular injection is - 
Select and explain. 
A. Deltoid, B. Anterolateral pa of thigh, C. Upper outer segment of buttocks, D. Upper inner segment of buttocks
C: Upper outer segment of buttocks
Answer: C: Upper outer segment of buttocks 
Explanation: Ans. is 'c' i.e., Upper outer segment of buttocks