This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Case of hemorrhagic disease of newborn bleed on 2nd day? 
Select and explain. 
A. 2, 7, 9, 10, B. 3, 7, 9, 10, C. 2, 8, 9, 10, D. 2, 5, 9, 10
A: 2, 7, 9, 10
Answer: A: 2, 7, 9, 10 
Explanation: Ans. is 'a' i.e., 2, 7, 9, 10