GMAT Sentence Correction (SC) | Re: A proposal has been made to trim the horns from rhinoceroses

so even if there would be no other flaws in option e)( A proposal has been made to trim the horns from rhinoceroses to discourage poachers; the question tourists will continue to visit game parks to see one after the animals' horns have been ) i.e even if this would have been the intended meaning it would be incorrect.
Because there is no clear referent to "one".It should modify "rhinoceros" but rhinoceros is not mentioned in the sentence.

thank you.
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