TOEFL Reading: ETS-TOEFL阅读机经 - 0431PD93IE1U6KH7L$

According to paragraph 6, Professor Renfrew has argued that one factor leading to the rise of megaliths in Europe was A. the adoption of farming by Mesolithic hunter-gatherers B. the transition from a glacial to a postglacial climate C. the relocation of Mesolithic populations from one region to another D. the conflict over whether areas inhabited by Mesolithic peoples would be used for farming