题目选项分析

The thousands of volcanic islands and coral atolls of the South Seas have a total population of about four million, but the paucity of natural resources does not permit the economic development needed to support a larger population

The thousands of volcanic islands and coral atolls of the South Seas have a total population of about four million, but the paucity of natural resources does not permit such economic development that would be needed by them to support more population