英语翻译

题目

英语翻译
About half of the states now have reduced teenage driver crashes,according to recent studies,about half of the states now have some sort of graduated licensing system in place.
选项:The present situation in about half of the states is thatthe graduated licensing system is about to be set up.(为什么是对的~）

答案

原文就是说 有一半州的青少年车祸数量的减少,依据最近的调查,就是因为这些州都实行了毕业司机牌照制度.
但是你给的答案却是说这项制度即将实行（is about to be set up）.
我觉得答案应该是错的哦