Answer:
Social media relates to all the technology that makes information sharing possible via the Internet. It is largely based on subject matter that users create and share.
Step-by-step explanation:
Mass media approach: One-to-many
Personal contact approach: one-to-one.
Difference: Sellers are involved in mass media; buyers exchange information passively. Seller and buyer are both active on PC.
It is also the primary communication means used to meet the vast majority of the population. Newspapers, journals, radio, TV and the internet are the most prominent mass media channels.