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: Medicine
Causes of cynosis -a) TOFb) PDAc) Tricuspid atresiad) Eisenmenger's complexe) TGA 
Select and explain. 
A. bce, B. acde, C. abcd, D. abde
B: acde
Answer: B: acde 
Explanation: None