Which Assertion Is Accurate About the Transition from Consumers to Produsers

Which assertion is accurate about the transition from consumers to produsers?

A) Determining who owns user-generated content on social media sites has become an important legal concern.
B) Traditional brands have lost their meanings for us.
C) Ratings systems that rank the usefulness of a review or comment no longer help us make decisions.
D) Buzz marketing has become less important for advertisers.