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
About Soyabean true - 
Select and explain. 
A. Protein 40%, B. Minerals 8%, C. Digestibility coefficient 75%, D. Highest quality protein amongst vegetarian food
A: Protein 40%
Answer: A: Protein 40% 
Explanation: Soya beans contain 40percent of protein,20percent of fat, 4percent minerals. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO-628