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: Gynaecology & Obstetrics
Most common congenital hea disease during pregnancy - 
Select and explain. 
A. ASD, B. VSD, C. TOF, D. AS
A: ASD
Answer: A: ASD 
Explanation: ANS. A. ASDAtrial Septal Defect (ASD) ostium secundum type is the most common congenitalhea disease encountered in pregnancy.