The value of $$\left(4\frac{1}{5}-3\frac{1}{10} of 1\frac{1}{7}\right)\div\left(6\frac{1}{3}-3\frac{1}{5} of 1\frac{1}{2}\right)$$ is:

A

$$\frac{3}{5}$$

B

$$\frac{5}{9}$$

C

$$\frac{5}{7}$$

D

$$\frac{3}{7}$$