GMAT Sentence Correction (SC) | Re: Studying skeletons unearthed near Rome, DNA evidence was recovered by

Studying skeletons unearthed near Rome, DNA evidence was recovered by scientists, who were able to deduce from this that an epidemic of malaria struck in the empire’s waning days.

A.Studying skeletons unearthed near Rome, DNA evidence was recovered by scientists, who were able to deduce from this
B.In studying skeletons unearthed near Rome, DNA evidence was recovered by scientists, who