单选题
Which of the following conditions does the passage suggest is a possible cause for the failure of a lobster to develop a crusher claw?
A、
The loss of a claw during the third or earlier stage of development
B、
The lose of claw during the fourth or fifth stage of development
C、
The loss of a claw during the sixth stage of development
D、
Development in an environment devoid of material that can be manipulated
【正确答案】
D
【答案解析】
由文章最好两句话可以知道，在没有可以操作的对象的环境中长大的龙虾是不会长出crusher claw的。
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