This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New Born Infants, Subject name: Pediatrics
Umbilical cord usually separates in newborns on: 
Select and explain. 
A. Day 1, B. Day 2-3, C. Day 7-10, D. After 1 month
C: Day 7-10
Answer: C: Day 7-10 
Explanation: Ans. C. Day 7-10Umbilical cord is the connection between the mother and the fetus in the intrauterine stage and includes two arteries and one vein. It usually separates in children between day 7-10, either by dry gangrene or a residual moist base.