Task: Text Completion
Input (English): He finishes the cube and sets it on the desk and quickly stops a timer. He grabs the cube again and begins to complete it. he <sep> (A) asks his friend when he can finish. (B) picks it up and faces the camera again. (C) finishes again and starts another game of the cube. (D) picks up the blue cube and resumes talking.
Output (English): C