How many inputs can a 2-to-1 multiplexer select from?

A 2-to-1 multiplexer is designed to select between two different input signals. It has two data inputs and one output. The multiplexer uses a single control signal to determine which of the two inputs will be routed to the output. When the control signal is in one state (e.g., logic 0), it connects to the first input, while in the other state (e.g., logic 1), it connects to the second input.

This functionality allows the 2-to-1 multiplexer to effectively choose between two distinct inputs, making the correct answer the one that indicates two inputs can be selected. The design and purpose of a multiplexer is to manage the flow of data from multiple sources into a single output line, and a 2-to-1 configuration specifically caters to selecting between just two inputs.