4. It was widely assumed that the coach's______ played a pivotal role in the recent extraordinary success of his team. However, discerning insiders recognized that it was his extensive experience rather than any innate acumen that led to their winning streak.
(A) empathy
(B) acumen
(C) amiability
(D) pragmatism

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統計： A(1), B(16), C(6), D(4), E(0) #3229413