This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Medicine
[{'content': 'Agent used for eliciting diagnostic differentiation of Myasthenia Gravis from Cholinergic crisis is:- \nSelect and explain. \nA. Ecothiophate, B. Edrophonium, C. Neostigmine, D. Ambenonium', 'role': 'user'}, {'content': 'Answer: B \nExplanation: myasthenia gravis - we do edrophonium test - we notice improvement because edrophonium inhibits the breakdown of acetylcholine leading to increase in response of muscles', 'role': 'assistant'}]