Amtrak Is Taking the Gloves Off in Advertisements and Belittling

Amtrak is taking the gloves off in advertisements and belittling its major competition,which is the airline shuttles.Amtrak's new name for its Metroliner is The Smart Shuttle.Gone are ads that were inner-directed and sold the Metroliner on its leisurely pace.In their place are ads showing rapid shots of the sleek train and business executives conducting no-nonsense meetings "eyeball-to-eyeball." The campaign,which includes television,radio,print,billboards,and posters in commuter railroad cars,targets business travelers,who,Amtrak says,incorrectly believe the train takes far longer than the airplane to travel between two cities.One television spot opens with a shot of airplanes stacked up in a tarmac traffic jam.Another shows a business traveler lumbering into the airport during a snowstorm.The announcer says,"Schedule a meeting.Take the shuttle.Then cross your fingers." The poor soul looks up at the departure board and sees a row of "Canceled" signs.The announcer continues,"Schedule a meeting.Take the Metroliner.Then cross your legs."
-Refer to Amtrak.Television,radio,print,and out-of-home media represent the _____ in the communication process used by Amtrak.

A) feedback loop
B) channel
C) encoder
D) receiver
E) communicator