Choose the correct one from among the alternatives $\text{A, B, C, D}$ after matching an item from Group $1$ with the most appropriate item in Group $2.$
$$\begin{array}{|l|l|} \hline \textbf{Group 1} & \textbf{Group 2} \\\hline \text{P : Shift register} & \text{1 : Frequency division} \\ \text{Q : Counter} & \text{2 : Addressing in memory chips} \\ \text{R : Decoder} & \text{3 : Serial to parallel data conversion} \\\hline \end{array}$$
- $\mathrm{P}-3, \mathrm{Q}-2, \mathrm{R}-1$
- $\text{P – 3, Q – 1, R – 2}$
- $\mathrm{P}-2, \mathrm{Q}-1, \mathrm{R}-3$
- $\text{P – 1, Q – 2, R – 2}$