A box contains 5 white balls and 3 red balls. Two balls are withdrawn from the box randomly, one after another (without replacement). The probability that the two balls withdrawn are of different colour is

A. $$\frac{{15}}{{64}}$$

B. $$\frac{{25}}{{64}}$$

C. $$\frac{{25}}{{56}}$$

D. $$\frac{{30}}{{56}}$$

Answer: Option D