求助语法题一道！

liuyanjia

131.
Today's technology allows manufacturers to make small cars more fuel-efficient now than at any time in their production history.
(A) small cars more fuel-efficient now than at any time in their
(B) small cars that are more fuel-efficient than they were at any time in their
(C) small cars that are more fuel-efficient than those at any other time in
(D) more fuel-efficient small cars than those at any other time in their
(E) more fuel-efficient small cars now than at any time in

这道题我选A，看不出逻辑哪里错了啊，就说车的现在和以前相比也没错啊。。。

liuyanjia

我不太懂改变了原句的意思这样的解释，难道是说原句即使语法错了，但是逻辑意思永远不会错对嘛？

liuyanjia

关键是我怎么知道原句的逻辑意思是什么呢？