Which Statement Correctly States the Impact of Social Media on Consumer

Which statement correctly states the impact of social media on consumer behavior?

A) Although social media allow people to continue traditional ways of information gathering,these new technologies make people more knowledgeable by giving them access to a lot of information.
B) Although social media allow people to stay in touch in new ways,the new technologies mostly confuse people by giving them access to too much information.
C) Social media have drastically changed the advertising business from an industry based on relationships and conversations to one based on mass-media models.
D) Social media have drastically changed the advertising business from an industry based on mass-media models to one based on relationships and conversations.