What is the missing fraction in the box? \[1-[\,\,?\,\,]-\frac{3}{12}=\frac{1}{6}\]

• A.  \[\frac{2}{12}\]                     
• B.    \[\frac{7}{17}\]                     
• C.  \[\frac{9}{12}\]                     
• D.    \[\frac{7}{12}\]