Which statements about publicity is true?

It is the main form of mass selling, which includes only the use of traditional media.

It includes posts on a company's website, viral videos, word$-$of$-$mouth communication, a company's Facebook page, and its "tweets" on Twitter.

It is any paid form of nonpersonal presentation of ideas, goods, or services by a sponsor.

If a firm has a really new message, publicity may be less useful than advertising.

It tries to attract attention to the firm and its offerings through paid media promotions.