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
[{'content': 'All of the following are true regarding Tetralogy of Fallot except - \nSelect and explain. \nA. Ejection systolic murmur in second intercostal space, B. Single second hea sound, C. Predominantly left to right shunt, D. Normal jugular venous pressure', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Predominantly left to right shunt Hemodynamics of Tetralogy of Fallot o The severity of obstruction to the right ventricular outflow determines the direction of blood flow.", 'role': 'assistant'}]