While Watching a Television Program,Liza Gets a Phone Call Just

While watching a television program,Liza gets a phone call just as a commercial is starting.She presses the "mute" button on the television's remote control and takes the call,so she pays no attention to the commercial.In terms of the communication process,the telephone call is an example of

A) encoding.
B) noise.
C) decoding.
D) feedback.
E) the message channel.