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
A中补全Today's technology allows manufacturers to make small cars more fuel-efficient now than (make small cars more fuel-efficient) at any time in their production history. 所以比较表时间的副词结构所传达的意思显然有逻辑错误。