Horsesare incapable of physically vomiting, suggesting that their evolutionary ancestors were in greater danger of starving than of poisoning.
A. are incapable of physically vomiting, suggesting that their evolutionary ancestors were in greater danger of starving than of-- Correct because of prepositional parallelism'of' .
B. physically lack the ability to vomit, thus suggesting that the horse’s evolutionary ancestors were more endangered by starving than --- 'by' is missing -unparallel
C.
...
A. are incapable of physically vomiting, suggesting that their evolutionary ancestors were in greater danger of starving than of-- Correct because of prepositional parallelism'of' .
B. physically lack the ability to vomit, thus suggesting that the horse’s evolutionary ancestors were more endangered by starving than --- 'by' is missing -unparallel
C.
...
