In a multiplexer, the selection of a particular input line is controlled by ___________

In a multiplexer, the selection of a particular input line is controlled by selection lines or control signals.

A multiplexer, often referred to as a "mux," is a digital switch that allows multiple input signals to be selected and directed to a single output line. The operation of a multiplexer is determined by the number of selection lines it has, which in turn dictates how many input lines can be handled. For example, a multiplexer with $n$ selection lines can control $2^n$ input lines. The selection lines determine which of the inputs is directed to the output based on the binary value represented by the selection lines.

In summary, the selection of a particular input line in a multiplexer is controlled by the configuration and state of the selection lines or control signals.