The value of $$\frac{2}{7}-\frac{3}{8}-\left[2\frac{1}{4}\div3\frac{1}{2} of 1\frac{1}{3} + \left\{1\frac{17}{40}-\left(3-1\frac{1}{5}-\frac{3}{8}\right)\right\}\right]$$ is:

A

$$\frac{7}{2}$$

B

$$-\frac{4}{7}$$

C

$$-\frac{7}{2}$$

D

$$\frac{4}{7}$$