Use the Given Transformation to Evaluate the Integral $$\begin{aligned}u = & 2 x + y - z , v = - x + y + z , w = - x + y + 2 z \\& \iiint _ { R } ( 2 x + y - z ) d x d y d z\end{aligned}$$

Multiple Choice

Use the given transformation to evaluate the integral.
- $$\begin{aligned}u = & 2 x + y - z , v = - x + y + z , w = - x + y + 2 z \\& \iiint _ { R } ( 2 x + y - z ) d x d y d z\end{aligned}$$
where $R$ is the parallelepiped bounded by the planes $2 x + y - z = 6,2 x + y - z = 9 , - x + y + z = 2 , - x + y + z = 4$ , $- x + y + 2 z = 6 , - x + y + 2 z = 7$

A) 15
B) $\frac { 45 } { 2 }$
C) 135
D) 60