What is the value of $$\frac{\frac{5}{6} of \frac{1}{3} \times \frac{12}{25} - \frac{1}{3} of \frac{5}{6} \times \frac{18}{25}}{\frac{25}{12} of \frac{1}{6} \times \frac{2}{5} + \frac{3}{8} of \frac{12}{25} \times \frac{5}{6}}$$

A

-3/13

B

-5/13

C

-8/25

D

-3/25