A、A lack of funds from the government. B、The improper use of related funds. C、The government’s unwillingness to pay. D、Sponsors’

Remember the Rio Olympics? From the summer? Well, it turns out the organizers still haven’t paid hundreds of people who helped to put the games together, and the workers are so angry that they’re ready to sue.
    Among the hundreds of people who have not been paid are stadium announcers, show producers, DJs and people who work for the official Olympic news service.
    South African freelance show producer Rocky Bester is now acting as a spokesman for 100 contractors who are struggling to receive payment for their work this summer. He told the Associated Press that Rio was the seventh Olympics of his career, but that he has never seen organizers respond to his and others’ requests for information with such silence.
    "We’ve had robust conversations at other Olympics about payments, but it’s always been an open conversation," Bester told the AP. "What is happening here is that no one is talking back. We’re sitting in the dark. We’re mushrooms at the moment. "
    Rio organizers might not be responding to their workers, but spokesman Mario Andrada did respond to the AP, saying that the problem is that sponsors are late on their own payments to the organizers. "The trouble is the delay. We will pay the money," Andrada said.
    Even before news of the non-payments surfaced, money- and labor-related issues continuously popped up around the Rio Olympics. The Rio Olympic Games may be over, but the fight over then-existence clearly is not.
    Questions 12 to 15 are based on the passage you have just heard.
    12.What might the angry workers do?
    13.Who might on the unpaid list of the Rio Olympics?
    14.Why did the spokesman of the unpaid group feel upset about this issue?
    15.What caused the delay in paying those working for the Rio Olympics?