What Does UART Stand For, and What Does It Do

Multiple Choice

What does UART stand for, and what does it do?

A) Universal ASCII Receiver Transmitter; it is used to transmit and receive ASCII characters.
B) United Artists Radio and Television; the standard data interfacing system first used by the movie industry.
C) Universal ASCII Relay Transmission; defines a method (standard) by which data communications can be made between parallel and serial devices or systems.
D) Universal Asynchronous Receiver Transmitter; it is used to interface the parallel data bus in a typical computer system to serial data transmission lines.