【单选题】

He showed great interest in my field of work. He asked me ______ fresh developments.

A、informing him of
B、to inform him
C、to keep him informed of
D、keeping him informed of

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根据网考网移动考试中心的统计，该试题：

1%的考友选择了A选项

10%的考友选择了B选项

75%的考友选择了C选项

14%的考友选择了D选项