The sum of the series $$1 + \frac{4}{3} + \frac{10}{9} + \frac{28}{27} + \ldots$$ upto $$n$$ terms is

A

$$\frac{7}{6}n + \frac{1}{6} - \frac{2}{3\cdot 2^{n-1}}$$

B

$$\frac{5}{3}n - \frac{7}{6} + \frac{1}{2\cdot 3^{n-1}}$$

C

$$n + \frac{1}{2} - \frac{1}{2\cdot 3^n}$$

D

$$n - \frac{1}{3} - \frac{1}{3\cdot 2^{n-1}}$$