What Did Marshall McLuhan Mean by the Statement, "The Medium

Multiple Choice

What did Marshall McLuhan mean by the statement, "the medium is the message"?

A) He meant that the form the message takes, as well as the content of the message, can change people and societies.
B) McLuhan meant that the form of the message is more important than the content of the message.
C) Messages should always be given in the most engaging form to ensure that people will pay attention.
D) People can only fully appreciate messages that are given in a combination of media forms, like an audio-visual message