Which of the Following Statements Is True of Crowdsourcing

Which of the following statements is true of crowdsourcing?

A) ​It describes how the input of many people can be leveraged to make decisions that used to be based on the input of only a few people.
B) It describes how the level of buzz created for a product can be used as a measurable parameter for determining the product's effectiveness.
C) It describes the methods in which a consumer should use a product or service.
D) ​It describes the need for consumers to buy a product and their willingness to buy it.