Answer:
Option C: Brandfest
Brandfest is described as an event that a company hosts to than its loyal customers.
Step-by-step explanation:
Brandfest is the most important way to thank its loyal customer and bring more business by sustaining the brand name.
Entrepreneur: He is the person who sets up the business.
Crowdsourcing: Obtaining information from a large number of people.
Value proposition: This is an attractive way in marketing to impress and bring more business
Folksonomy: This is to segregate items online according to the category. This is done with the help of tagging an item.