Simplify the following expression.
$$\left[\frac{85}{34} \times \frac{1}{18}\left\{\left(\frac{46}{39} \div \frac{27}{135}\right) - \left(\frac{86}{129} \times \frac{91}{14}\right)\right\} of \frac{112}{36}\right]$$

A

$$3\frac{1}{5}$$

B

$$3\frac{3}{4}$$

C

$$3\frac{1}{2}$$

D

$$3\frac{1}{4}$$