Many companies are now adopting social media as a means of communication. which of these is true about using this medium for communication? a. this medium of communication is formal. b. this medium of communication is used to communicate only internally within the office. c. this medium of communication is often used to type official emails. d. this medium of communication make use of short messaging services to provide quick updates.

The answer is: D.This medium of communication make use of short messaging services to provide quick updates.

Before social media exist, updates regarding company's product were conducted through phones or direct letter. With such methods, it needs a long time before the customers base aware of the updates.

With social media, all the customers could obtain the notification about the updates as soon as the announcement is made.

i don't know the answer to this