The Column-1 lists the attributes and the Column-2 lists the modulation systems. Match the attribute to the modulation system that best meets it.
$\begin{array}{llrl} & \underline{\textbf { Column-1 }} & & \underline{\textbf { Column-2 }} \\ \text { P. } & \text { Power efficient transmission of signals } & \text { I. } & \text { Conventional AM } \\ \text { Q. } & \text { Most bandwidth efficient transmission of voice signals } & \text { II. } & \text { FM } \\ \text { R. } & \text { Simplest receiver structure } & \text { III. } & \text { VSB } \\ \text { S. } & \text { Bandwidth efficient transmission of signals with } & \text { IV. } & \text { SSB-SC } \\ & \text { significant } d c \text { component } & \end{array}$
- $\text{P-IV, Q-II, R-I, S-III}$
- $\text{P-II, Q-IV, R-I, S-III}$
- $\text{P-III, Q-II, R-I, S-IV}$
- $\text{P-II, Q-IV, R-III, S-I}$