This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Obstetrics, Subject name: Gynaecology & Obstetrics
Infants of diabetic pregnancies may have hyperophic cardiomyopathy that occasionally progresses to congestive hea failure. Cardiomyopathy generally disappears by 
Select and explain. 
A. 1 months of age, B. 3 months of age, C. 6 months of age, D. 12 months of age
C: 6 months of age
Answer: C: 6 months of age 
Explanation: Cardiac Hyperophy - Infants of diabetic pregnancies may have hyperophic cardiomyopathy that occasionally progresses to congestive hea failure. - These infants typically have macrosomia, and fetal hyperinsulinemia has been implicated in the pathogenesis of hea disease. - The cardiomyopathy generally disappears by 6 months of age.