Answer:
Viral marketing
Step-by-step explanation:
Viral marketing is a strategy in which customers share information about a product with other people using existing social networks thereby promoting the product. Viral marketing may be in the form of video clips, games, images, text messages, email messages and so on. The most common example of Viral marketing is the creation of emotional, surprising, funny or unique videos which are then shared on social networks like Instagram, Twitter and other channels