Which of the Following Describes How Crowdsourcing Helps Companies Meet

Which of the following describes how crowdsourcing helps companies meet their resources requirements?

A) by making a formal agreement with a third party about performing a service
B) by bringing together an external team to work with an internal team to achieve goals
C) by outsourcing a function once performed by employees to an undefined network of people
D) by entering into a service agreement with a freelancer
E) by dividing duties of a single position between two or more employees to reduce the total number of work hours