The value of $$15\frac{7}{10}+3\frac{1}{5} of \left[5\frac{1}{8}-\left(2\frac{1}{4}+\frac{5}{3}\times\frac{15}{14}\div\frac{10}{9} of \frac{3}{14}\right)\right]$$ is:

A

$$\frac{2}{5}$$

B

$$\frac{9}{10}$$

C

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

D

$$\frac{5}{21}$$