This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pediatrics
2 weeks baby central cyanosis, grade II murmur, normal S1 single S2, plethoric lung diagnosis ? 
Select and explain. 
A. TGA, B. TAPVC, C. TOF, D. Pulmonary atresia
A: TGA
Answer: A: TGA 
Explanation: In TGA there will be plethoric lung field, grade ll ejection systolic murmur, normal S1 and split S2. Ghai essential of pediatrics, eighth edition, p.no:425