Let c be a constant. The simultaneous equations
\begin{align*}
x-y = &\ 2 \\
cx+y = &\ 3 \\
\end{align*}
have a solution (x,y) inside Quadrant I if and only if<spanclass=′latex−bold′>(A)</span>c=−1<spanclass=′latex−bold′>(B)</span>c>−1<spanclass=′latex−bold′>(C)</span>c<23<spanclass=′latex−bold′>(D)</span>0<c<23<spanclass=′latex−bold′>(E)</span>−1<c<23