Which of the following is NOT an example of viral marketing?

1.Quicksilver puts out surfing videos and surf-culture books for teens.

2.A VMS has many intermediaries whereas a conventional marketing channel has a limited number of intermediaries.

3.A VMS is characterized by an independent producer whereas a conventional marketing channel is characterized by multiple producers.

4.A conventional marketing channel has elements such as retailers and wholesalers whereas these elements are not present in a VMS.

5.Producers have complete control over the other members in a conventional marketing channel whereas this control is minimal in a VMS.

what is the answer