This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pediatrics
Umbilical cord becomes black in 
Select and explain. 
A. 2-3 days, B. 5-7 days, C. 7-10 days, D. 10-14 days
A: 2-3 days
Answer: A: 2-3 days 
Explanation: The cord becomes brownish black within 2 or 3 days after bihIt falls off in about 10-14 days(Refer: Nelson's Textbook of Pediatrics, SAE, 1st edition, pg no. 811)