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.

[Q]: Researchers have discovered four extinct underwater volcanoes thousands of feet below the water off the coast of Sydney The calderas are believed to have formed 50 million years ago when supercontinent Gondwana was splitting up into the regions we now know as Australia and New Zealand. And this quartet of 'hotheads' may offer geologists clues about how exactly this tectonic movement took place. The volcanoes were discovered 125 miles (200km) off the southwestern Australian coast using the Investigator ocean explorer from the Commonwealth Scientific and Industrial Research Organisation (CSIRO). Scientists from the University of New South Wales Australia were searching for nursery grounds for larval lobsters when the sonar images spotted the volcanoes 16,100 feet (4,900 metres) underwater.Four volcanoes found in a cluster 125 miles (200km) off coast of SydneyResearchers found the ancient underwater formation by accidentCluster is 12 miles (20km) long, 4 miles (6km wide) and rises 230ft (700m)Experts believe they tell 'part of the story' of how Australia and New Zealand separated between 40 and 80 million years ago 
 Questions:'The ship is constantly mapping the sea floor as it travels, opening up a previously undiscovered and unknown world,' explained _. (A) Sydney (B) Gondwana (C) Australia (D) New Zealand (E) Australian (F) Commonwealth Scientific and Industrial Research Organisation (G) University of New South Wales (H) Four (I) Cluster
[A]: (F)


[Q]: Washington (CNN) -- Just two months after the brinksmanship of the "fiscal cliff," on Friday Washington faced yet another deadline to avoid yet another fiscal calamity of its own making. But this time, something is different. As congressional leaders met in the White House on Friday for what was little more than a photo-op on the day forced budget cuts went into effect, this time there are no 11th-hour negotiations to save the day. There is no last-minute effort to call in Vice President Joe Biden on behalf of Democrats or Senate Minority Leader Mitch McConnell on behalf of Republicans to get things back on track.Washington faced yet another fiscal deadline -- this time with no real effort to negotiateCouples therapist: Democrats, Republicans lost sight of big picture, are just arguing to winCouples mediator: Disagreements should be used to find solutions 
 Questions:"And that's exactly what they're doing -- the Democrats and the _ are doing with each other. (A) Washington (B) CNN (C) White House (D) Joe Biden (E) Democrats (F) Senate (G) Mitch McConnell (H) Republicans
[A]: (H)


[Q]: White Plains, New York (CNN) To Hillary Clinton's campaign, Donald Trump is no more than the political version of Biff Tannen from "Back to the Future," Mick from "Teen Wolf "and Regina George from "Mean Girls." The Clinton campaign's latest ad compares Trump to a series of movie bullies by pairing disparaging lines from the actors with comments Trump has made throughout his career. The formula goes like this: Regina George from Mean Girls saying "you are so stupid" is paired with Trump saying "how stupid are the people of the country" at a November rally, while Biff from Back to the Future saying "I don't want to see you in here again" is paired with Trump kicking people out of his rallies.The Clinton campaign's latest ad compares Trump to a series of movie bulliesThe ad is airing in key battleground states including Florida, Iowa, Nevada and Pennsylvania 
 Questions:"Hillary Clinton should look in the mirror on this one," _ spokesman Jason Miller said. (A) White Plains (B) New York (C) CNN (D) Hillary Clinton (E) Donald Trump (F) Biff Tannen (G) Back to the Future (H) Mick (I) Teen Wolf (J) Regina George (K) Mean Girls (L) Clinton (M) Biff (N) Florida (O) Iowa (P) Nevada (Q) Pennsylvania
[A]:
(E)