This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other hea diseases in children, Subject name: Pediatrics
Which of the following is a cyanotic hea disease: 
Select and explain. 
A. PDA, B. VSD, C. TOF, D. ASD
C: TOF
Answer: C: TOF 
Explanation: CLASSIFICATION OF CONGENITAL HEA DISEASES: Acyanotic hea disease Cyanotic hea disease - VSD - ASD - PDA -TOF -Tricuspid atresia -Pulmonary atresia with intact septum -Transposition of great aeries -TAPVC -Truncus aeriosus -Ebstein anomaly BASED ON PATHOPHYSIOLOGY: