Answer:
A. prosumer; crowdsourcing
Explanation:
Prosumers are people who both produce and consume goods and services. Communities are made of of people who co-create goods, and so are independent of external communities in meeting their needs.
Crowdsourcing is a growing way of working which involves duties being open to a large number of people. The advantage is that there is a large pool of talent to solve problems and accomplish jobs.
