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
Among the pulses, the highest quantity of protein is present in: 
Select and explain. 
A. Green gram, B. Red gram, C. Soyabean, D. Black gram
C: Soyabean
Answer: C: Soyabean 
Explanation: Soyabean