Correct option is D. It means have curiosity about.
No one but a Swedish madman could take the slightest interest in it. Here I am.
In second paragraph, the narrator states that the North Pole “is an abstraction, a mathematical fiction" and that “no one but a Swedish mad man could take the slightest interest in it". In this context, the narrator is stating that people would not “take the slightest interest in,” or be curious about, the North Pole. So, option D best befits the context here. A, B, and C are incorrect because in this context, “take the slightest interest in" does not mean to accept responsibility, possess little regard, or pay no attention to something.
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