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: Anaesthesia
Laryngeal mask airway, all are true except 
Select and explain. 
A. Less invasive, B. Prevents aspiration, C. Easy to insert, D. Less complications
B: Prevents aspiration
Answer: B: Prevents aspiration 
Explanation: LMA cannot prevent aspiration.