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: Microbiology
[{'content': 'Sporulation occurs in - \nSelect and explain. \nA. Lag phase, B. Log phase, C. Stationary phase, D. Decline phase', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The various phases of growth curve are associated with morphological and physiological alterations of the cells.', 'role': 'assistant'}]