If $$x + y = 5$$ and $$\frac{1}{x} + \frac{1}{y} = \frac{20}{9}$$, then the value of $$(x^3 + y^3)$$ will be:

A

$$\frac{205}{4}$$

B

$$\frac{635}{8}$$

C

$$\frac{635}{4}$$

D

$$\frac{365}{4}$$