Two oil cans, X and Y, are right
circular cylinders, and the height and
the radius of Y are each twice those of
X. If the oil in can X, which is filled to
capacity, sells for $2, then at the same
rate, how much does the oil in can Y
sell for if Y is filled to only half its
capacity?
(A) $1
(B) $2
(C) $3
(D) $4
(E) $8

OA is E