A 1-month-old boy is referred for failure to thrive.On examination,he shows feature of congestive failure.The femoral pulses are feeble as compared to branchial pulses.The most likely clinical diagnosis is:

• A. Coarctation of aorta
• B. Congenital aortic stenosis
• C. Patent ductus arteriosus
• D. Congenital aortoiliac disease