GWD3: -Q30Today’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 请问为什么E不对呢? 谢谢!