Please choose the correct answer to the question: Jeff noticed that the big dipper was in a different spot in the sky at 2am than where it was at 10pm. Why?

Answer1: because of the earth's orbit Answer2: the stars had rotated Answer3: Jeff had been instantly transported thousands of miles from where he'd been at 10pm. Answer4: the earth had turned

Answer format: answer1/answer2/answer3/answer4
Answer: answer4