Detailed Instructions: In this task, you will be presented with a question having multiple possible answers in Chinese language. And you should choose a most suitable option out of "A", "B", "C", "D", and "E" based on your commonsense knowledge.
Q: Question: 哪里的咸水鱼最幸福？ 
 Options: A 海洋 B 艭 C 水族箱 D 咸水 E 河流 
A:
A