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: Dental
Safest site for IM injection in children: 
Select and explain. 
A. Vastus lateralis, B. Dorsogluteal., C. Deltoid., D. Ventrogluteal.
A: Vastus lateralis
Answer: A: Vastus lateralis 
Explanation: None