Laplace Transform of $$e^{at}t^{n}$$ is

A

$$\frac{n}{(s - a)^{n + 1}}$$

B

$$\frac{n!}{(s + a)^{n + 1}}$$

C

$$\frac{n!}{(s - a)^{n + 1}}$$

D

$$\frac{1}{(s - a)^{n + 1}}$$