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: Pediatrics
[{'content': 'The concetration of potassium in microgram in ORS is- \nSelect and explain. \nA. 30 meq, B. 20 meq, C. 90 meq, D. 60 meq', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 20 meq", 'role': 'assistant'}]