The following question presents a sentence, part or all of which is underlined. Select the answer that produces the most effective sentence; your answer should make the sentence clear, exact, and free of grammatical error. It should minimize awkwardness, ambiguity, and redundancy.

Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.