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
All of the following are true regarding Tetralogy of Fallot except – 
Select and explain. 
A. Ejection systolic murmur in second intercostal space, B. Single second heart sound, C. Predominantly left to right shunt, D. Normal jugular venous pressure
C: Predominantly left to right shunt
Answer: C: Predominantly left to right shunt 
Explanation: Hemodynamics of Tetralogy of Fallot 

The severity of obstruction to the right ventricular outflow determines the direction of blood flow.