43. Paleontologist Stephen Jay Gould has argued that many biological traits are not the products of natural selection, favored due to their enhancement of reproduction or survival, but that they are simply random by-products of other evolutionary developments.
A due to their enhancement of reproduction or survival, but that they are
B due to the reproduction or survival they enhance, but they are
C because they enhance reproduction or survival, but
D because they enhance reproduction or survival, but are
E because of enhancing reproduction or survival, but are
What's wrong with c?
In C, lack of helping verb "are" will make 2 interpretation.
1. but simply random by-products of... will elaborate for "due to ... survival"
2. but simply random by-products of... will elaborate for (contradict) the product of natural selection.
In choice D, it has just only one interpretation as #2
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