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
A foreign body is commonly responsible for vaginal bleeding in pediatric patients. 
Select and explain. 
A. Congenital malformation, B. Intrauterine growth retardation, C. Poor weight gain, D. Foetal death
A: Congenital malformation
Answer: A: Congenital malformation 
Explanation: Ans. is 'a' i.e., Congenital malformation o Smoking during pregnancy causes --> o IUGR (Low bih weight) Fetal death Sudden infant death syndrome May horm the child's mental development and behavior.