Which statement accurately describes the paragraph?

PR $($public relations$)$ agents who specialize in media relations also recommend advertising to their clients when it seems appropriate. Unlike publicity, which is sometimes outside a PR agency's control, paid advertising may help to focus a complex issue or a client's image. Publicity, however, carries the aura of legitimate news and thus has more credibility than advertising.

$-$Campbell et al$.,$ Media and Culture: An Introduction to Mass Communication, Bedford$/$St$.$ Martin's.

The authors suggest that paid advertising lends clients more credibility than publicity.

The authors provide concrete examples of how public relations agents shape public perception.

The authors define the key term "publicity."

The authors compare and contrast publicity and paid advertising in terms of what they have to offer clients.