Match the industrial processes in $Group–I$ with the catalyst materials in  $Group–2$.

$\begin{array}{cc}\\ \\ &\text{Group-1} & \text{Group-2} \\ &\text{P. Ethylene polymerisation} & \text{ I. Nickel} \\ &\text{ Q. Petroleum feedstock cracking} & \text{II. Vanadium pentoxide} \\ &\text{R. Oxidation of$SO_{2}$to$SO_{3}$} & \text{III. Zeolite}\\ &\text{S. Hydrogenation of oil} & \text{IV. Aluminium triethyl with titanium chloride promoter} \\ \\ \end{array}$

1. $P-IV$, $Q-III$, $R-II$, $S-I$
2. $P-I$, $Q-IV$, $R-III$, $S-II$
3. $P-I$, $Q-II$, $R-III$, $S-IV$
4. $P-II$, $Q-III$, $R-IV$, $S-I$