A、On Monday. B、On Thursday. C、On Friday. D、On Sunday. C选项均为日期，预读选项时可判断本题询问时间，听音时应特别留意出现的时间点及其对应的事件。新闻中提到这三个人是在星期五清晨被捕的。故C正确。

Gen Badrodin Haiti, the national police chief, said Sunakim and one other attacker had both been convicted criminals. Jakarta’s chief of police, Insp Gen Tito Karnavian, said a hunt was under way for terror cells believed to be behind the attack.
    [3]Three men were arrested near Jakarta early on Friday, police told local media A police spokesman, Anton Charliyan, confirmed on Friday that those who organised the attacks were associated with IS.
    Two of the criminals, he added, were "known to have committed similar radical activities some time ago". Earlier, Bahrum Nairn, an Indonesian believed to be fighting with IS in Syria, was named as the suspected coordinator.
    [4]Insp Gen Karnavian said Nairn’s "vision" was to unite various IS-supporting groups across South East Asia IS released a statement saying it had targeted citizens of countries which are part of the international alliance fighting the group, which controls parts of Syria and Iraq.
3. When were the three attackers arrested?
4. What was the Bahrum Nairn’s vision?