The table lists two instrument transformers and their features:
\begin{array}{|l|l|}
\hline \text{ Instrument Transformers } &\text{ Features } \\
\hline & \text{P}) \text{Primary is connected in parallel to the grid} \\
\hline \text{X}) \text{Current Transformer (CT)} & \text{Q}) \text{Open circuited secondary is not desirable} \\
\hline \text{Y}) \text{Potential Transformer (PT)} & \text{R}) \text{Primary current is the line current} \\
\hline & \text{S}) \text{Secondary burden affects the primary current} \\
\hline
\end{array}
The correct matching of the two columns is
- $\mathrm{X}$ matches with $\mathrm{P}$ and $\mathrm{Q} ; \mathrm{Y}$ matches with $\mathrm{R}$ and $\mathrm{S}$.
- $\mathrm{X}$ matches with $\mathrm{P}$ and $\mathrm{R} ; \mathrm{Y}$ matches with $\mathrm{Q}$ and $\mathrm{S}$.
- $\mathrm{X}$ matches with $\mathrm{Q}$ and $\mathrm{R} ; \mathrm{Y}$ matches with $\mathrm{P}$ and $\mathrm{S}$.
- $\mathrm{X}$ matches with $\mathrm{Q}$ and $\mathrm{S}$; $\mathrm{Y}$ matches with $\mathrm{P}$ and $\mathrm{R}$.