A bag contains 3 red balls, 5 yellow balls and 7 pink balls. If one ball is drawn at random from the bag, what is the probability that it is either pink or red ?

A

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

B

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

C

$$\frac{1}{4}$$

D

$$\frac{2}{5}$$

E

None of these