Which of the following statements is true about viral marketing?

Question $36$ options:

a$)$

None of the other options are correct.

b$)$

It is the dissemination of information to a narrow audience.

c$)$

It enables people to work on a variety of Internet related projects in more flexible ways.

d$)$

It uses face to face $($highly personalized$)$ discussion to spread information about a brand.

e$)$

It uses malware $($e$.$g$.,$ adware, spyware$)$ to display ads in a host computer's