The value of 2 of $$5-\frac{1}{2}-[4\div2-\frac{1}{3}-\left\{\frac{3}{4}-(5-\overline{\frac{1}{2}-\frac{3}{4}}) \right\}]$$ is:

A

$$\frac{1}{6}$$

B

$$\frac{10}{3}$$

C

$$\frac{7}{6}$$

D

$$\frac{13}{2}$$