Definition: 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: The Rubik's Cube has puzzled the minds of millions for decades, with most people giving up before ever coming close to finishing the notoriously difficult game. But not teenager Collin Burns, who has completed a cube in just 5.25 seconds, smashing the world record. The US national 'speedcubing' champion was at an official Rubik's Cube event in Doylestown, Pennsylvania, when he shaved 0.3 of a second off the record. Genius: Teenager Collin Burns completed a Rubik's Cube in just 5.25 seconds, breaking the world record Unbelievable: Collin looks up at the clock after finishing the puzzle, clearly astonished by his achievementA teenager has broken the world record for completing a Rubik's CubeCollin Burns finished the notoriously difficult puzzle in just 5.25 secondsHe shaved 0.3 of a second off the record at an event in Pennsylvania 
 Questions:As the 3x3 _'s colours align, he drops it down on to a pressure sensor which stops the watch, bringing gasps from his fellow enthusiasts as they realise he has set a new fastest time. (A) Rubik's Cube (B) Collin Burns (C) US (D) Doylestown (E) Pennsylvania (F) Collin
Output:
(A)