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单选题
The reason why the lobsters migrate is _____.
A
the bad weather
B
the depth of the ocean
C
scientists’ lack of interest
D
unknown
参考答案
参考解析
解析：
根据第三段最后一句“Nobody knows why they do this, and nobody knows where they go.”可知，没有人知道龙虾为什么要迁徙，要迁往何处。
根据第三段最后一句“Nobody knows why they do this, and nobody knows where they go.”可知，没有人知道龙虾为什么要迁徙，要迁往何处。
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