GMAT Sentence Correction (SC) | Re: Using digital enhancements of skull fragments from five prehistoric

Using digital enhancements of skull fragments from five prehistoric hominids dating to more than 350,000 years ago,anthropologists argue that these human ancestors probably had hearing similar to that of people today.

A.anthropologists argue that these human ancestors
B.anthropologists argue, so these human ancestors
C.anthropologists argue, these human ancestors
D.these human ancestors, anthropologists argue,
E.these human ancestors are argued by anthropologists to have