Which of the following is true about crowdsourcing?
a.
There are only a few successful examples of crowdsourcing in the world today.
b.
Crowdsourcing works best when there is a very small crowd of people working together.
c.
All of these are true
d.
Crowdsourcing involves a large number of people making small contributions to the overall project.
d.
Crowdsourcing involves a large number of people making small contributions to the overall project.