TOEFL Listening: ETS-TOEFL听力机经 - K7J59WSC52P9A39LP$

According to the speakers, how does the T-shirt company use collective intelligence? A. It conducts online surveys to determine how much customers would be willing to pay for a T-shirt. B. It uses the results of an online voting process to select images to place on T-shirts. C. It provides free software that enables groups of users to create T-shirt designs online. D. It solicits T-shirt designs from people outside the company.