阅读下列图表， 从每题所给的A、B、C三个选项中， 选出最佳选项回答问题或完成句子。
For most people, the blue robot cat Doraemon(哆啦A梦) will always get together with Nobita（大雄） and never leave. But now, in the new 3-D movie Stand By Me (《伴我同行》), Doraemon finally has to go back to where he is from – the future. The movie is now showing in Japan. Nobita and Doraemon’s separation (分离) really made lots of fans sad.
What is Stand By Me?
A. A blue robot cat.
B. A new 3-D movie.
C. A popular song.What happened in the end?
A. Doraemon died.
B. Nobita died.
C. Doraemon went back to where he was from.