A. Although the first Homo erectus, or early human, to be identified was in the 1890s by Dutch anatomist Eugene Dubois, it
had not been followed by another such identification for over twenty years.
The use of "had" is wrong here. The discovery by Eugene happened first and then there was no follow up for over 20 years. By using "had" here we are saying that the follow up occurred first and then the discovery. Thus, A is out.B.
Although not been followed by another such identification for over twenty years,
in the 1890s Dutch anatomist Eugene Dubois found the first Homo erectus, or early human,
to be identified.
The structure is weak. Although...,in the 1890s...,to be identified. B is out.C. Although identified by Dutch anatomist Eugene Dubois in the 1890s, the identification of the first Homo erectus, or early human,
had not been followed by another such identification for over twenty years.
Same as A. The use of "had" is wrong. Thus C is out.D. The first Homo erectus, or early human, to be identified was found in the 1890s by Dutch anatomist Eugene Dubois, but it was not followed by another such identification for over twenty years
Nice Structure. No such errors as it's counterparts. Therefore, D is the answer.E. The first identified Homo erectus, or early human, was not followed by another such identification for over twenty years, while
it was found in the 1890s by Dutch anatomist Eugene
The structure is weak. The last part after comma ", while it was found..." makes it sound as if the follow up was found in he 1890s. Basically the pronoun "it" doesn't clear state which part it refers to. Thus E is out.This is one of my first explanations on a verbal topic.
GMATNinja VeritasKarishma generisI request experts to review my explanation.
To my fellow users, please don't consider my explanation unless verified by any of the experts.
I just hope that I'm not completely off the chart. Haha.
Thank you
Posted from my mobile device