Where Are Semilunar Valves to Be Found in the Mammalian

Where are semilunar valves to be found in the mammalian heart?

A) where blood goes from atria to ventricles
B) on the right side of the heart only
C) where the pulmonary veins attach to the heart
D) at the places where blood leaves via the aorta and pulmonary arteries
E) at the places where the anterior and posterior venae cavae enter