A Major Difference Between Public Relations and Advertising Is

A major difference between public relations and advertising is

A) Advertising is about selling an organization; in public relations it's about selling products and services.
B) Public relations strives for unbiased, objective, third-party messengers to relay information about an organization as well as its products and services; in advertising, the choice of media helps accomplish that.
C) There virtually is no difference between the two.
D) Advertising focuses on paying for time or space that allows advertisers to disseminate their organization's messages about its products and services; in public relations, credibility helps to earn media recognition.