Ans: B
According to the figure, $p\approx -4$, $q \approx -2$, $r\approx 1$ and $s \approx 5$. Therefore we have
According to the figure, $p\approx -4$, $q \approx -2$, $r\approx 1$ and $s \approx 5$. Therefore we have
$\begin{array}{rcl}
(p-q)(r+s) & = & [(-4)-(-2)][(1)+(5)] \\
& = & -12
\end{array}$
