Coarctation of aorta is associated with all, except –
(A) Turner's syndrome (B) Bicuspid aortic valve (C) Pulmonary stenosis (D) Atresia of aortic arch
(C) Coarctation of Aorta is a quite common structural abnoimality.
Males are affected twice often as females although females with Turner syndrome frequently have a coarctation.
Two classic forms of coarctation ofAorta have been described.

1) An infantile form with tubular hypoplasia of the Aortic arch proximal to a P A that is often asymptomatic in childhod. (This is known as coarctation syndrome).
2)An "adult" form in which there is discrete ridge like infolding of the Aorta just opposite to closed ductus arteriosus.
Although coarctation of Aorta may occur as a solitary defect it is accompanied by -

Bicuspid aortic valve in 50% cases and may be associated with -:

Congenital Aortic stenosis, ASD, VSD, mitral regurgitation and Berry aneurysm of the circle of willis.