tpo46 閱讀Ecosystem Diversity 單字題 - 英檢

4.The word "redundancy" in the passage is closest in meaning to
A duplication
B variety
C requirements
D flexibility

First, if there are more species in an ecosystem, then its food web will be
more complex, with greater redundancy among species in terms of their
nutritional roles.


想請問一下

考滿分給的答案是B

但redundancy也有過多、重覆的意思

我看討論區，很多人說答案是A

不曉得各位覺得如何?



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