Simplify the expression $$441 \div \left[270 \div \frac{3}{7} + \left(17 \div \frac{1}{3}\right) - \left(8\frac{1}{2} - \frac{5}{2}\right)\right]$$

A

$$\frac{39}{75}$$

B

$$\frac{29}{75}$$

C

$$\frac{19}{75}$$

D

$$\frac{49}{75}$$