$($D$3)[8$ pts$]$ Use Stokes' Theorem to evaluate ${\displaystyle \underset{C}{\overset{\phantom{}}{}}}F*dr,$ where $F(x,y,z)=($:$e^{-x},e^x,e^z$:$),$ and $C,$ oriented counterclockwise viewed from above, is the boundary of the part of the plane $2x+y+2z=2$ in the first octant.