$$\eqalign{& {\text{Simplify if,}}\cr& {\text{I= }}\frac{3}{5} \div \frac{5}{6}{\text{,}}\cr& {\text{II=3}} \div \left[ {\left( {4 \div 5} \right) \div 6} \right]{\text{,}}\cr& {\text{III=}}\left[ {3 \div \left( {4 \div 5} \right)} \right] \div 6\,,\cr& {\text{IV=3}} \div {\text{4}}\left( {5 \div 6} \right)\cr& {\text{then }} \cr} $$

• A. and II are equal
• B. and III are equal
• C. and IV are equal
• D. I and III are equal
• E. ll are equal