Subtract and Simplify $\begin{array} { r } 12 \frac { 2 } { 9 } \\\\- \quad 6 \frac { 5 } { 6 }\end{array}$

Multiple Choice

Subtract and simplify.
- $\begin{array} { r } 12 \frac { 2 } { 9 } \\\\- \quad 6 \frac { 5 } { 6 }\end{array}$

A) 5
B) $4 \frac { 5 } { 18 }$
C) $6 \frac { 7 } { 18 }$
D) $5 \frac { 7 } { 18 }$