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
Present in human milk 
Select and explain. 
A. CaCO3, B. Ca & P, C. K lactate, D. None
B: Ca & P
Answer: B: Ca & P 
Explanation: Ref:Park's Text book of Preventive and Social Medicine 25th ed