This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: obstetrics,pediatrics and geriatrics, Subject name: Social & Preventive Medicine
Cow's milk contains what % proteins - 
Select and explain. 
A. 1.1, B. 3.2, C. 3.5, D. 4.1
B: 3.2
Answer: B: 3.2 
Explanation: Cow milk contain 3.2%of proteinREF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 582