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: Radiology
A 35-year-old hypertension patient has the following CXR in annual medical checkup. What does it show? 
Select and explain. 
A. Left ventricular hypertrophy, B. Pulmonary artery hypertension, C. Coarctation of aorta, D. Cor pulmonale
C: Coarctation of aorta
Answer: C: Coarctation of aorta 
Explanation: Ans. C. Coarctation of aortaNotice the following radiographic features:a. Normal vascularityb. Cardiomegalyc. Left ventricular prominenced. "3" sign; formed by pre-stenotic dilatation of aortic arch, indentation at the site of coarctation and post stenotic dilatation of descending Aorta.