In $$\triangle$$ABC, AD bisects $$\angle$$A which meets BC at D. If BC = a, AC = b and AB = c, then DC = _______.

A

$$\frac{ab}{b + c}$$

B

$$\frac{ac}{a + c}$$

C

$$\frac{bc}{a + c}$$

D

$$\frac{ac}{a + b}$$