What is the missing number in-the box? \[\text{3}\frac{\text{3}}{\text{4}}\text{, 3}\frac{\text{1}}{\text{2}}\text{, }\text{, 3, 2}\frac{\text{3}}{\text{4}}\]

• A.  \[3\frac{2}{3}\]               
• B.         \[3\frac{1}{4}\]               
• C.  \[3\frac{2}{5}\]                               
• D.  \[3\frac{1}{6}\]