H&M, a Clothing Company, Communicates to Its Target Customers by Advertising

H&M, a clothing company, communicates to its target customers by advertising in magazines, offering clothing information on its website, creating a periodic online newsletter, and using Facebook and Twitter. These vehicles through which the coded message is transmitted from the source, H&M, to the receiver, the prospective customer, are called

A) fields of reference.
B) decoders.
C) encoders.
D) relay channels.
E) communication channels.