Which of the following statements is FALSE regarding advertising?

Group of answer choices

Advertising represents a persuasive form of communication, designed to get the consumer to take some action.

Word$-$of$-$mouth activities are considered advertising.

Advertising must be carried by some medium: television, radio, print, the Internet.

Advertising is not free; someone has paid$$with money, trade, or other means$$to get the message shown.

Legally, the source of the message must be known or knowable.