_$$\eqalign{ & {\text{Simplify:}} \cr & \frac{{\frac{1}{3} + \frac{1}{4}\left[ {\frac{2}{5} - \frac{1}{2}} \right]}}{{1\frac{2}{3}\,{\text{of }}\frac{3}{4} - \frac{3}{4}\,{\text{of }}\frac{4}{5}}} = ? \cr} $$$?

• A. 37/78
• B. 37/13
• C. 74/78
• D. 74/13