Match the equipment in Column $A$ with the corresponding process in Column $B$

$\begin{array}{|cl|cI|cI|cI|cI|cI|}\hline &\text{$Column\:A$} & \text{$Column\:B$} \\ \hline &\text{P. Centrifugal sifter} & \text{I. Mixing} \\ \hline &\text{Q. Bowl mill} & \text{II. Sedimentation} \\ \hline &\text{R. Gravity thickener} & \text{III. Screening} \\ \hline &\text{S. Two-arm kneader} & \text{IV. Grinding} \\ \hline \end{array}$

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