According to the author of this passage, a social democracy would most likely adopt a formal system of government when A. recognized leadership becomes necessary to deal with social problems B. people lose the instinctive ability to cooperate in solving social problems C. a ruling monarch decides that it is necessary to grant political concessions to the people D. citizens no longer consider their social leaders essentially equal to themselves E. the human instinct to obey social leaders has been weakened by suspicion and jealousy