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

A

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

B

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

C

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

D

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