OG解释说Forgreater clarity and concision, the two subordinate
clauses should be condensed into one: educators
are at fault for not anticipating the impact of
microcomputer technology
C主要是第二个It is用的有点问题,wordy,不完整,曲解意思。
C - It can hardly be said that it is the fault of educators who have not anticipated the impact of microcomputer technology
第二个It is 后面是 who 的定语从句 翻译过来就是: It can hardly be said that it is the fault of a certain kind of educators. certain kind - those educators who have not anticipated the impact of microcomputer technology
没有说明 what is the fault of educators? 所以这个it缺乏指代对象,句子不完整.