GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - UY5B0CUFVDW4I4OFJ

In the context of the passage as a whole, the highlighted sentence serves to A. introduce a complication that the author deals with in the following sentence B. anticipate the claim that is made in the next sentence C. expand on the claim made in the preceding sentence D. qualify a theory that was introduced earlier in the passage E. summarize the author's argument