If process $P_0$ is switched to process $P_1,$ state for $P_0$ will be saved into $q,$ and state from $q,$ will be reloaded?

$PC{B}_0.PC{B}_0$

$PC{E}_{6}PC{E}_1$

$PC{B}_1,PC{B}_0$

$PC{E}_1,PC{E}_1$