GATE 2024 EE Q.46: official answer

For a two-phase network, the phase voltages $V_p$ and $V_q$ are to be expressed in terms of sequence voltages $V_{\alpha }$ and $V_{\beta }$ as $\left[\begin{array}{c}{V}_p\\ V_q\end{array}\right]=\mathbf{S}\left[\begin{array}{c}{V}_{\alpha }\\ V_{\beta }\end{array}\right]$. The possible option(s) for matrix $\mathbf{S}$ is/are