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]: Lagos, Nigeria (CNN) The father of one of the missing Nigerian schoolgirls abducted from Chibok two years ago has told CNN he is overjoyed to see her alive on a new video released by the terrorist group Sunday. Yakubu Kabu confirmed to CNN that he saw his daughter speaking in the new video, which demands the release of Boko Haram fighters in exchange for the kidnapped girls. The Nigerian government has said it is still "in touch" with Boko Haram and "working for the girls' release," the Federal Ministry of Information and Culture said on their official Facebook page. "We are being extremely careful because the situation has been compounded by the split in the leadership of Boko Haram," said Alhaji Lai Mohammed, Minister of Information of Culture, according to the statement.A Boko Haram militant tells Nigeria to release jailed fighters in exchange for abducted girlsThe man says at least 40 of the girls have been married off 
 Question:The video, more than 11 minutes long, is addressed to the "families of the _ girls."
[A]: Chibok


[Q]: Washington (CNN) President Donald Trump on Wednesday blamed his former campaign rival, Hillary Clinton, and her husband, former President Bill Clinton, for the North Korean nuclear crisis. "After allowing North Korea to research and build Nukes while Secretary of State (Bill C also), Crooked Hillary now criticizes," Trump tweeted. Trump was apparently referring to Clinton's criticism of his United Nations address on Tuesday night during an appearance on CBS's "The Late Show" with Stephen Colbert. Clinton hit Trump for being "dark" and "dangerous" about the message he presented, adding he should approach the tension with North Korea with diplomacy. Trump to UN: 'Rocket Man is on a suicide mission'Trump blamed Clinton for the situation in North KoreaClinton slammed Trump on CBS's "The Late Show" 
 Question:Trump delivered Tuesday a doomsday warning to _ in his UN address and mocked its young leader.
[A]: North Korean


[Q]: (CNN) "Yessssss!" was my reaction to hearing the news that the U.S. Food and Drug Administration intends to regulate e-cigarettes, hookahs, vape pens, e-pipes and other electronic nicotine delivery products. As a family physician, I often have patients ask me about e-cigarettes. Some have seen advertisements and are wondering what they are; some have simply heard that e-cigarettes are safer than traditional cigarettes and want to know if this is true. E-cigarettes are included in the category of ENDS -- Electronic Nicotine Delivery Systems -- products that use a liquid containing nicotine and varying amounts of flavor, glycerin, propylene glycol and other ingredients. This liquid is heated into an aerosol that users then smoke. It is often referred to as "vaping."Jennifer Caudle says FDA regulation of electronic nicotine delivery systems is overdueMore research needed on long-term effects, especially as youth use skyrockets, she says 
 Question:Others might wonder why a change is needed at all: Many believe _ products have allowed them to quit smoking regular nicotine cigarettes or using other tobacco products.
[A]:
Electronic Nicotine Delivery Systems