This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': 'Conversion of uroporphyrinogen III to coproporphyrinogen III is an example of \nSelect and explain. \nA. Deamination, B. Decarboxylation, C. Hydrogenation, D. Dehydrogenation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (Refer Q 26)', 'role': 'assistant'}]