This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
[{'content': 'Among the pulses, the highest quantity of protein is present in - \nSelect and explain. \nA. Green gram, B. Red gram, C. Soyabean, D. Black gram', 'role': 'user'}, {'content': "Answer: C \nExplanation: Among tha pulses soybean contain 40percent of protein. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 580", 'role': 'assistant'}]