问题详情

How did the police gain access to Melvin Colons Facebook profile？

A．He himself carelessly made his online information public.

B．One of his Facebook friends cooperated with the police.

C．The judge granted warrant of using his private information.

D．Facebook made a deal with the police about its users" privacy level.

请帮忙给出正确答案和分析，谢谢！