请教大全 补充250－218，急！

(A) The camel’s domestication, dated by some scholars to have been about the twelfth century B.C., was the key to the development of the spice trade in the ancient world.

(B) The domestication of the camel, thought by some scholars to have occurred about the twelfth century B.C., was the key to the development of the spice trade in the ancient world.

正确选项是B，但是A错在哪里？能否帮助分析一下？

多谢！

(A) The camel’s domestication是绝对错误的,物主代词不是这样用的,domestication是抽象名词,不可能被camel拥有

而且date用得太绝对了,不如thought by some scholars to have occurred 合理