\eqalign{ & {\text{Simplify:}} \cr & \frac{{\frac{5}{3} \times \frac{7}{{51}}{\text{of}}\frac{7}{5} - \frac{1}{3}}}{{\frac{2}{9} \times \frac{5}{7}{\text{of}}\frac{{28}}{5} - \frac{2}{3}}}\,\, = \, \cr} $$

• A. 1/2
• B. 4
• C. 2
• D. 1/4