Employment costs rose 2.8 percent in the 12 months that ended in September, slightly less than they did in the year that ended in the previous quarter.
Employment costs rose 2.8 percent in the 12 months that ended in September, slightly less than they did in the year that ended in the previous quarter.
(A) less than they did
(B) less than it did
(C) less than they were
(D) lower than
(E) lower than they were
D如果改成lower than the rate可不可以呢...作为那个2.8%的修饰成分...弱弱地问...