Multiplexer

The Multiplexer is a Logic Gate with three inputs and one output. Similar to the real-life version, the multiplexer's output mimics the logical state of either the 'left' or 'right' input, depending on the state of the 'bottom' input (as seen from above, with the ouput as 'top').

Logic Table
Table assumes a view from above, with the output at the 'top'.