Task: Question Answering
Input (English): Earth rotates on its north-south axis. Which statement best describes one complete rotation?  
 (A) It takes six months and causes summer and winter seasons. (B) It takes 24 hours and causes night and day. (C) It takes 29 days, which represents one cycle of the Moon's phases. (D) It takes 365 days, which represents one Earth year.
Output (English): B