The value of $$18 \div 6 of 9 \times [12 \div 3 of \left\{16 \times 2 \div (11 - 8)\right\}] of (4 \div 2 of 8)$$ is:

A

$$\frac{9}{16}$$

B

$$\frac{3}{8}$$

C

$$\frac{1}{32}$$

D

$$\frac{81}{32}$$