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': 'Which one of the following pulses has the highest content of iron – \nSelect and explain. \nA. Bengal gram, B. Black gram, C. Red gram, D. Soyabean', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Only Bengal gram contains Vitamin C among the common pulses', 'role': 'assistant'}]