For which two main purposes do companies use social media ?

More and more, social media are being used for marketing purposes. Businesses use social media to promote themselves and their products. Nonprofit organizations raise funds and promote charity events. Individuals market themselves to prospective employers.

Explanation:

in its most general sense, a fair use is any copying of copyrighted material done for a limited and “transformative” purpose, such as to comment upon, criticize, or parody a copyrighted work. such uses can be done without permission from the copyright owner.apr 4, 2013

i will say b. laboratory technician   and if wrong then sorry