The nurse measuring an infant's blood pressure finds it is higher in the arms than the legs. The finding is associated with which congenital heart defect?

A. Coarctation of the aorta: This condition involves narrowing of the aorta, usually after the vessels that supply the upper body. This leads to higher blood pressure in the arms and lower in the legs. B. Hypoplastic left heart syndrome: This defect involves underdevelopment of the left side of the heart, leading to systemic hypoperfusion, not blood pressure discrepancies between limbs. C. Tetralogy of Fallot: This is a cyanotic defect with right-to-left shunting and does not cause significant arm-leg BP discrepancies. D. Patent ductus arteriosus: PDA causes left-to-right shunting but generally does not lead to higher arm than leg blood pressure.