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. Among the entities, try to find the best entity that is most likely to fill in "_" and classify the answers based on options.

Input: Consider Input: What kind of weapon can shoot down a fully loaded passenger jet flying at nearly 33,000 feet? That could be a key question in the Malaysia Airlines Flight 17 crash investigation, as officials try to determine what was responsible for Thursday's plane crash in volatile eastern Ukraine. A radar system saw a surface-to-air missile system turn on and track an aircraft right before the plane went down, a senior U.S. official told CNN's Barbara Starr. And a second system saw a heat signature at the time the airliner was hit. The United States is analyzing the trajectory of the missile to pinpoint where the attack came from, the official said.Senior U.S. official: Radar saw surface-to-air missile system track aircraftA sophisticated surface-to-air missile was more likely used, experts sayOne possibility is the Russian-made Buk missile system, retired Army officer saysThe sophisticated weapon would require professional soldiers, expert says 
 Questions:Such weapons travel with _ troops at the division level, Francona said. (A) Malaysia Airlines (B) Ukraine (C) U.S. (D) CNN (E) Barbara Starr (F) United States (G) Russian (H) Buk missile system (I) Army

Output: (G)


Input: Consider Input: Seafood is very healthy to eat -- all things considered. Fish and shellfish are an important source of protein, vitamins and minerals, and they are low in saturated fat. But seafood's claim to fame is its omega-3 fatty acids, docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), all of which are beneficial to health. The U.S. Dietary Guidelines for Americans strongly suggest that adults eat two servings of seafood, or a total of eight ounces, per week. Omega-3s are today's darling of the nutrition world, and many observational studies have indeed shown them to benefit a range of conditions such as high blood pressure, stroke, certain cancers, asthma, Type 2 diabetes and Alzheimer's disease.Most Americans eat plenty of protein, but not enough of it is from seafoodAmid concerns over mercury pollution and sustainability, how do you choose? 
 Questions:One of the things I research is _' meat and protein consumption. (A) DHA (B) EPA (C) U.S. Dietary Guidelines (D) Americans (E) Omega-3s (F) Alzheimer

Output: (D)


Input: Consider Input: (CNN) One of the next members of President Donald Trump's administration to enter the Russia investigation spotlight finds himself in a particularly awkward spot: He's the top lawyer at the White House. Don McGahn is expected to be interviewed in the coming weeks in special counsel Robert Mueller's investigation, along with communications director Hope Hicks and Josh Raffel, who handles press-related inquiries for White House senior adviser Jared Kushner. The 49-year-old former Federal Election commissioner acted as a conduit of information to Trump before the President decided to fire National Security Adviser Michael Flynn and FBI Director James Comey. McGahn also served as the Trump presidential campaign's chief counsel while he was still a partner in private practice at the law firm Jones Day.Don McGahn is expected to be interviewed in the coming weeksHe also served as the Trump presidential campaign's chief counselHe'll have choices to make, including what he'll share with investigators 
 Questions:The _ investigation already succeeded once in getting around attorney-client privilege. (A) Donald Trump (B) Russia (C) White House (D) Don McGahn (E) Robert Mueller (F) Hope Hicks (G) Josh Raffel (H) Jared Kushner (I) Federal Election (J) Trump (K) National Security (L) Michael Flynn (M) FBI (N) James Comey (O) McGahn (P) Jones Day


Output: (E)