Please choose the correct ending to complete the given sentence: Playing rubik cube: A boy is seated at a table in a crowded room. He has a rubik's cube, and tries to solve the puzzle. he

Ending1: opens and closes his mouth until he come to a conclusion. Ending2: solves all of the rubiks cubes in less than ten minutes with the help of a teacher. Ending3: times himself as he finishes the cube, tossing it down on the table. Ending4: tries again, and is shown this time attempting a landing goal, knocking down a longer than normal cube.

Answer format: ending1/ending2/ending3/ending4