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: Social & Preventive Medicine
[{'content': 'True about OPV strain - \nSelect and explain. \nA. Grows well at 40° C, B. Grows well at decreaase concentration of bicarbonate, C. Nucleotide sequencing does not distinguish between wild strain and vaccine strain, D. Poor growth in stable cell line of monkey kidney', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]