Tha value of $$(5\frac{5}{6} \div 3\frac{1}{2} of \frac{10}{21}) \div (\frac{3}{4} \div 1\frac{1}{2} of \frac{4}{5} - \frac{4}{5} \times \frac{1}{2}) of \frac{35}{18}$$ is:

A

$$3 \frac{1}{2}$$

B

$$1 \frac{4}{5}$$

C

6

D

8