Match sub-cellular organelles listed in $Group\; I$ with their features listed in $Group\; II$:

$$\begin{array}{|cl|cI|cI|cI|cI|c|}\hline &\textbf{Group I} & \textbf{Group II} \\ \hline &\text{P. Mitochondrion} & \text{1. Single-membrane enclosed} \\ \hline &\text{Q. Chloroplast} & \text{2. Double-membrane enclosed} \\ \hline &\text{R. Nucleus} & \text{3. Maternal inheritance} \\ \hline &\text{S. Endoplasmic reticulum} & \text{4. Endosymbiotic origin} \\ \hline \end{array}$$

1. $P-1, Q-4, R-2, S-3$
2. $P-2, Q-3, R-4, S-1$
3. $P-3, Q-4, R-2, S-1$
4. $P-3, Q-1, R-4, S-2$