The value of $$42 \div 9$$ of $$6 - [64 \div 48 \times 3 - 15 \div 8 \times (11- 17) \div 9] \div 14$$ is:

A

$$\frac{19}{36}$$

B

$$\frac{7}{18}$$

C

$$\frac{29}{72}$$

D

$$\frac{5}{12}$$