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].

[EX Q]: A Texas hunter who is paying $350,000 (£235,000) to shoot a Black Rhino in Africa has been granted permission to import the animal's carcass to the U.S. as a trophy. Corey Knowlton sparked fury among animal rights activists after bidding for the right to shoot the animal at an auction held by the Dallas Safari Club last year. After news of the auction broke Mr Knowlton received death threats and has had to hire a private security team. Trophy: Texas big game hunter Corey Knowlton has been granted permission to bring the carcass of a Black Rhino back to the U.S.Corey Knowlton won right to kill the animal at an auction last yearBut he was waiting for permission to bring the carcass back to the U.S.150,000 people signed petition demanding his request should be deniedNamibia sells small number of Rhino-hunting licences every yearMoney is used to fund anti-poaching efforts under controversial scheme 
 Question:Prior to _'s poaching boom in the 1960s, the country had around 70,000 black rhinos.
[EX A]: Namibia

[EX Q]: Roger Federer set up a blockbuster rematch with world number one Novak Djokovic by beating Milos Raonic to reach the final of the BNP Paribas Open. Following Djokovic's comprehensive 6-2 6-3 victory over British No 1 Andy Murray, Federer reached his 40th ATP World Tour Masters 1000 final with a 7-5 6-4 defeat of Canadian sixth seed Raonic at Indian Wells. Sunday's showdown will be a 38th meeting between reigning champion Djokovic and world number two Federer, who is on a 19-set winning streak. Roger Federer celebrates after completing his 7-5 6-4 semi-final win over Canadian Milos Raonic The Swiss serves during the contest at Indian Well and will now play Novak Djokovic in Sunday's finalFederer beat Raonic 7-5 6-4 to reach final of BNP Paribas OpenSwiss will face the world No 1 Djokovic in Sunday's finalThe Serb had earlier beaten British No 1 Andy Murray 6-2 6-3 
 Question:The _ soon broke for a 6-5 lead and wrapped up the set.
[EX A]: Swiss

[EX Q]: (CNN) The United States is being hit with the most mumps cases in a decade, according to the Centers for Disease Control and Prevention. The latest tally as of November 5 is 2,879 cases in 45 states and the District of Columbia. Mumps is a contagious disease caused by a virus spread through saliva and mucus. The CDC recommends that children get two doses of the MMR vaccine, which protects against measles, mumps and rubella, but it is not 100% effective. To respond to this year's high numbers, the Advisory Committee on Immunization Practices -- a panel of medical and public health experts who meet three times a year to offer vaccination guidance for the United States -- is considering recommendation of a third dose of vaccine. It is unclear what age groups this would involve.The CDC reports 2,879 cases of the mumps in 45 states and DC, the most since 2006Arkansas and Iowa have been the hardest hit 
 Question:She said that studies show the current vaccine is effective against this strain and that the _ is not concerned about changing strains.
[EX A]:
CDC

