Ans: D
$\begin{array}{cl}
& (u+v)(v-u)(u-1) \\
= & (u^2 -v^2)(u-1) \\
= & u^3 -u^2 -uv^2 +v^2 \\
= & u^3 -u^2 -uv^2 +v^2
\end{array}$
