The ratio of the cost price to the marked price of an article is 1 : 3 and the ratio of the percentage profit to the percentage of discount is 3 : 1. Then the discount percentage is

A

$$13\frac{1}{3}$$

B

$$18\frac{2}{3}$$

C

$$25\frac{1}{3}$$

D

$$33\frac{1}{3}$$