In each of the following sentences, there is one word underlined and one gap. From the list of words lettered A - D, choose the word that is most nearly opposite in meaning to the underlined word and that will, at the same time, correctly fill the gap in the sentences.
Ann's efficiency earned her a promotion while Jane's ...........caused her dismissal.
Efficiency; able to accomplish something with the least waste of time and effort
Incompetence; inability to do something successfully; ineptitude.
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