GRE Reading Comprehension: ETS-GRE阅读ETS - D8RCLD9243B4G29Y7

Which one of the following statements best expresses the main idea of the passage? A. Democratic political institutions grow organically from the traditions and conventions of a society. B. Democratic political institutions are not necessarily the outcome of literacy in a society. C. Religious authority, like political authority, can determine who in a given society will have access to important books and documents. D. Those who are best educated are most often those who control the institutions of authority in a society. E. Those in authority have a vested interest in ensuring that those under their control remain illiterate.