Match the entries in $\text{Group I}$ with the methods of sterilization in $\text{Group II}$

$\begin{array}{|l|l|l|l|} \hline & \textbf{Group I} && \text{Group II} \\ \hline P. & \text{Serum} & 1. & \text{Autoclave} \\ \hline Q. & \text{Luria broth} & 2. & \text{Membrane filtration} \\ \hline R. & \text{Polypropylene tubes} & 3. & \text{UV irradiation} \\ \hline S. & \text{Biological safety cabinets} & 4. & \text{Gamma irradiation} \\ \hline &&5. & \text{Dry heat} \\ \hline \end{array}$

1. $\text{P-5, Q-3, R-1, S-4}$
2. $\text{P-1, Q-4, R-5, S-3}$
3. $\text{P-2, Q-1, R-4, S-3}$
4. $\text{P-4, Q-1, R-3, S-5}$