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
Lowest concentration of anesthetic agent in aveoli needed to produce immobility in response to painful stimulus in 50% of individual is termed as 
Select and explain. 
A. Minimum alveolar concentration, B. Minimal analgesic concentration, C. Minimal analgesic concentration, D. Maximum alveolar concentration
A: Minimum alveolar concentration
Answer: A: Minimum alveolar concentration 
Explanation: A i.e. Minimum alveolar concentration