OFFICIAL EXPLANATION


Let the distance between $\(P\)$ \& $\(Q\)$ and $\(R \& S\)$ be ' $\(2 d\)$ ' each.

The position of points $\(\mathrm{P} \& \mathrm{Q}\)$ and $\(\mathrm{R} \& \mathrm{~S}\)$ on line $\(l\)$ and line $m$ respectively can be have many' possibilities, out of which two possibilities are taken below

POSSIBILITY 1

In the position of two lines $l$ and m above, where points P and Q are not exactly above/below points $R \& S$, the distance from $P$ to $T$ is less than that from $T$ to $R$.

POSSIBILITY 2

In the position of two parallel lines $l$ and m above, where points P and Q are exactly above points $R$ and $S$ respectively, the distance from $T$ to $R$ is same as that from $T$ to $S$.

Hence a unique relation cannot be determined between column $A$ and column $B$ quantities, so the answer is (D).