单选题 The personnel director has ______. department managers of the new hiring policies.
A. reformed
B. informed
C. performed
D. transformed

【正确答案】 B
【答案解析】Inform(告知)是唯一可以跟直接宾语和介词of的动词。选项(A)reform(改革)、选项(C)perform(表演)和选项(D)transform(改变)在这个语境中讲不通。