单选题 Since early 1980s Noam Chomsky and other generative linguists proposed and developed a theory of universal grammar known as the ______ theory.
【正确答案】 D
【答案解析】解析：考查乔姆斯基理论的发展过程。20世纪80年代，生成语法学派提出的理论是最简方案。