Choose the correct one from among the alternatives $\mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}$ after matching an item from Group $1$ with the most appropriate item in Group $2.$
$$\begin{array}{|l|l|}
\hline \text{Group 1} & \qquad \text{Group 2} \\
\hline \text{1: FM} & \text{P: Slope overload} \\
\text{2: DM} & \text{Q: } \mu-\text{law} \\
\text{3: PSK} & \text{R: Envelope detector} \\
\text{4: PCM} & \text{S: Capture effect} \\
& \text{T: Hilbert transform} \\
& \text{U: Matched filter} \\
\hline \end{array}$$
- $\text{1-T, 2-P, 3-U, 4-S}$
- $\text{1-S, 2-U, 3-P, 4-T}$
- $\text{1-S, 2-P, 3-U, 4-Q}$
- $\text{1-U, 2-R, 3-S, 4-Q}$