This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Microbiology
[{'content': 'Autoclaving is done in: \nSelect and explain. \nA. Dry air at 121 degree C and 15 psi, B. Steam at 100 degree C for 30 minutes, C. Steam at 121 degree C for 15 minutes, D. Dry air at 160 degree C for 30 minutes', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Steam at 121 degree C for 15 minutes(Ref: Ananthanarayan, 9th/e, p. 32 and Baveja, 4th/e, p. 33) Steaming at 121 for 15 mins at 15lbs pressure.", 'role': 'assistant'}]