Simplify $$\frac{2\frac{3}{4}}{1\frac{5}{6}} \div \left(\frac{1}{3} + \frac{1}{4}\right) + \frac{5}{7} \div \frac{3}{4} of \frac{3}{7} - \frac{5}{4} of \frac{3}{5}$$.

A

$$5\frac{1}{36}$$

B

$$4\frac{11}{36}$$

C

$$2\frac{17}{36}$$

D

$$3\frac{5}{36}$$