A multiplexer is also known as A. coder B. decoder C. data selector D. multivibrator E. None of the above

A coder is a device that converts data from one form to another. For example, a digital-to-analog converter (DAC) converts a digital signal to an analog signal.

A decoder is a device that converts data from one form to another. For example, an analog-to-digital converter (ADC) converts an analog signal to a digital signal.

A multivibrator is an electronic circuit that oscillates between two stable states. It is also known as a relaxation oscillator.

None of the above is a multiplexer.