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]: Israeli Prime Minister Benjamin Netanyahu and top U.S. officials faced off Monday in dueling speeches on the high-stakes Iran nuclear negotiations, a signature foreign policy objective of President Barack Obama. 'Imagine what Iran would do with nuclear weapons,' he warned on Tuesday, saying that the Islamic republic is already training, arming and dispatching terrorists on five continents. Asked whether President Obama watched the speech, White House Press Secretary Josh Earnest told reporters: 'I don’t believe that he did.' Netanyahu says a nuclear-capable Iran would have the means to achieve its stated goal of annihilating Israel. He listed a litany of instances when Israel has acted on its own, in defiance of the U.S., to protect itself.White House says Obama did not watch Netanyahu's speech on MondaySpeech at the American Israel Public Affairs Committee meeting on Monday preceded his address to a Joint Meeting of CongressHouse Speaker John Boehner says 'we've had 10 times the number of requests for tickets than there are seats available in the gallery' on TuesdayWhite House sent Susan Rice and Samantha Power to rebut Netanyahu'Imagine what Iran would do with nuclear weapons,' Netanyahu warned as the US continues negotiations that could ultimately allow itHe suggested Israel might act against Iran on its own, listing times when it's defied the US to defend itselfPrime minister will speak to Congress Tuesday, but some Democrats are boycotting the event; he won't meet with Obama or Biden in Washington 
 Question:There will never be a sunset on America's commitment to _'s security.
[A]: Israeli


[Q]: Jackson Martinez has arrived in Spain following his £25million move to Atletico Madrid from Porto. The Colombia striker touched down in the Spanish capital on Tuesday to join up with his new team-mates, and was mobbed by reporters and fans desperate for a glimpse of their new star man. Martinez is following in the footsteps of now-Chelsea loanee Radamel Falcao, who swapped Porto for Atletico to much success in 2011. His countryman scored 52 league goals in 68 games at the club, but Martinez was quick to distance himself from comparisons when he arrived at the airport at around 3pm on Tuesday.Jackson Martinez has left Porto to join Atletico Madrid for £25millionThe Colombia striker touched down in the Spanish capital on TuesdayNow-Chelsea loanee Radamel Falcao made the same move in 2011Martinez has distanced himself from comparisons between him and Falcao 
 Question:'_ is Falcao and Jackson is Jackson, like you are a journalist and there are others.
[A]: Radamel Falcao


[Q]: Twitter has named interim Chief Executive Jack Dorsey as its permanent CEO. Dorsey has served as interim CEO for the past three months, after former Dick Costolo stepped down in July. Dorsey will remain the head of fast-growing mobile payments company Square, potentially setting up a conflict of interests for the co-founder of both companies. Twitter previously said the CEO job would be a full-time position, which seemed to exclude Dorsey as long as he continued to run Square. Dorsey is also CEO of mobile payment service Square, a job he has repeatedly said he intends to keep as he prepares to take that San Francisco company public too.Dick Costolo stepped down from role at the beginning of JulyRumours had circulated that interim CEO would be made permanentDorsey will also remain CEO of payment firm SquareTwitter previously said the job would be a full-time position, which seemed to exclude Dorsey as long as he continued to run Square 
 Question:'He has a profound understanding of the product and Twitter's mission in the world as well as a great relationship with _'s leadership team.'
[A]:
Twitter