The coefficient of $$x^{n - 1}$$ in the product $$(x + 1)(x + 2)(x + 3).....(x + n)$$ is

A

$$\frac{n(n + 1)}{2}$$

B

$$\frac{-n(n + 1)}{2}$$

C

$$\frac{n(n - 1)}{2}$$

D

$$\frac{-n(n - 1)}{2}$$