GRE Reading Comprehension: ETS-GRE阅读ETS - A6943K5R935Q8MU47

According to the passage, democracy is an example of A. a human circumstance that has molded creative ideas B. an instrument of survival that has altered its original form C. an attribute of a creative idea that has allowed that idea to persist D. a creative idea that has persisted because of its adaptability E. a reforming process that has culminated in the creation of modern governments