In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].

[Q]: (CNN) Khuram Shahzad Butt, a 27-year-old British national born in Pakistan who died in a hail of police bullets Saturday night after the London attack, was a tall, lanky, straggly bearded young man of few words -- a brainwashed follower of al-Muhajiroun, a loose grouping of British extremists supportive of ISIS linked to a large number of terrorist plots involving UK nationals. The latest on London attack CNN's Sandi Sidhu met him several times while reporting on the group in the United Kingdom between 2014 and 2016. He went by the name "Abz" or "Abu Zaitun" and seldom spoke during meetings. He was content to leave the task of proselytizing to louder, older members of the group, according to Sidhu.London attacker Khuram Shahzad Butt appeared in a 2016 Channel 4 documentary called "The Jihadis Next Door"At the time of the attack, Butt worked as a receptionist at a fitness center in Ilford, a friend from the gym said 
 Question:The identification of Butt as one of the attackers raised many questions about what _ authorities knew about him and when.
[A]: British


[Q]: (CNN) The US ambassador to the United Nations, Nikki Haley, has told CNN that removing Syrian President Bashar al-Assad from power is a priority, cementing an extraordinary U-turn in the Trump administration's stance on the embattled leader. Two days after the US launched military strikes on a Syrian airbase in response to a chemical weapons attack widely blamed on the Assad regime, Haley said Assad's departure was inevitable. But before Tuesday's chemical attack on the rebel-held town of Khan Sheikhoun, which killed 89 people, Haley had said toppling Assad was not a priority. President Donald Trump, before his election, described fighting ISIS and seeking Assad's removal at the same time as "idiocy."Haley says Assad hinders political solution for SyriaShe warns US could carry out more strikes on regime 
 Question:Secondly, we don't see a peaceful _ with Assad in there.
[A]: Syrian


[Q]: A father has criticised Tesco for making him feel 'like a criminal' after store staff wrongly accused him of using their free internet access to run a business. Freelance writer Tony Loton, 45, and his son Matthew sat down in the cafe in a store in Hanley, Stoke-on-Trent, Staffordshire, after buying a pot of tea. The father-of-two was about to use his computer when he was approached by a manager, who said someone had complained that he was coming into the cafe every day to take advantage of the free wi-fi. However, Mr Loton, of Middlewich, Cheshire, insisted this was not true and said he was left feeling angry after being embarrassed in front of his son and other shoppers.Tony Loton, 45, said staff accused of him using wi-fi 'for business' in cafeFreelance writer had bought pot of tea with his son in Stoke-on-Trent storeHe said store manager approached him and made him feel 'like a criminal'Tesco has now apologised and offered Mr Loton's family free tea and cake 
 Question:Mr Loton said he goes to the Tesco Extra store once a week when he makes the trip from his Cheshire home to visit his parents in Stoke-on-_.
[A]:
Trent