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

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