This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Radiology
[{'content': 'Pulmonary Plethora is seen in - \nSelect and explain. \nA. TOF, B. TAPVC, C. CoA, D. Tricuspid Atresia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Pulmonary plethora It is a term used to describe the appearances of increased pulmonary perfusion on chest radiographs. It may occur in several situations : Total anomalous pulmonary venous return (TAPVC) Left-to-right cardiac shunts (e.g. ASD, VSD, PDA) Truncus Aeriosus Vein of Galen Malformation Transposition of the Great Aeries It may also been seen in pregnancy due to increased cardiac output.', 'role': 'assistant'}]