If $$abc = 5$$, what is the value of $$\left(\frac{1}{1 + a + b^{-1}} + \frac{1}{1 + b + 5 c^{-1}} + \frac{1}{1 + \frac{c}{5} + a^{-1}}\right)$$?

A

$$5$$

B

$$1$$

C

$$\frac{1}{5}$$

D

$$(a + b + c)$$