<prompt> A 1 month old boy is refereed 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 isCongenital aoic stenosisCoarctation of aoaPatent ductus aeriosusCongenital aooiliac disease  <response>: In coarctation of aoa there will be radiofemoral delay. Ref : Ghai essential of pediatrics, eighth edition, p.no:432 