Question $7$

$[$difference$]$ Which statement describes a key difference between advertising and public relations?

Public relations is used during a crisis, while advertising is usually done when business is successful.

Public relations is more expensive on a cost$-$per$-$contact basis than advertising.

Advertising is usually directly paid, while public relations is usually indirectly paid.

Advertising provides an immediate feedback loop, while public relations does not.

Public relations always has a much greater reach than advertising.