True statement about Coarctation of the Aorta includes

(A) Lower limb pulses are barely palpable or absent> Coarctation of the aorta, or aortic coarctation, is a congenital condition whereby the aorta narrows in the area where the ductus arteriosus (ligamentum arteriosum after regression) inserts.> Coarctation is about twice as common in boys as it is in girls, it s common in girls who have Turner syndrome.Arterial hypertension in the arms with normal to low blood pressure in the lower extremities is classic.> Poor peripheral pulses in the legs and a weak femoral artery pulse may be found in severe cases.Post-stenotic dilation of the aorta results in a classic 'figure 3 sign' on x-ray.> An untreated coarctation may also result in hypertrophy of the left ventricle.