A shopkeeper placed on display some dresses each with a marked price. She then posted a sign “$$\frac{1}{4}$$ off on these dresses”. The cost of dresses was $$\frac{2}{3}$$ of the price at which she actually sold them. Then the ratio of the cost to the marked price was

A

1 : 2

B

2 : 3

C

4 : 9

D

3 : 5