Match each alkene in List I (geometry stated) with its CIP descriptor in List II. List I: (P) $\mathrm{BrCH}=\mathrm{CHCl}$ with $\mathrm{Br}$ and $\mathrm{Cl}$ on the same side; (Q) $\mathrm{CH}{}_3-\mathrm{CH}=\mathrm{C}(\mathrm{CH}{}_3)-\mathrm{CH}{}_2\mathrm{CH}{}_3$ with the $\mathrm{CH}{}_3$ attached to C2 (that is, C1) and the $\mathrm{CH}{}_2\mathrm{CH}{}_3$ attached to C3 on opposite sides of the double bond; (R) $\mathrm{C}{}_6\mathrm{H}{}_5-\mathrm{CH}=\mathrm{CH}-\mathrm{COOH}$ with $\mathrm{C}{}_6\mathrm{H}{}_5$ and $\mathrm{COOH}$ on opposite sides; (S) $(\mathrm{CH}{}_3){}_2\mathrm{C}=\mathrm{N}-\mathrm{OH}$. List II: (1) $E$; (2) $Z$; (3) no $E/Z$ isomerism possible.

1. AP-2, Q-1, R-1, S-3
2. BP-1, Q-1, R-2, S-3
3. CP-2, Q-1, R-3, S-1
4. DP-2, Q-2, R-1, S-3