Lines 56-57 provide evidence that the narra-tor eventually recognizes his motives for traveling to the North Pole: “What I am on the brink of knowing, I now see, is not an ephemeral mathematical spot but myself.” The narrator initially was unsure of why he was traveling to the North Pole, but realizes that he has embarked on a journey to find himself.
Choices A, B, and C are incorrect because they do not provide the best evi-dence that the narrator eventually recognizes his motives for traveling to the North Pole. Rather, choices A, B, and C all focus on the narrator’s prepara-tions and expectations for the journey.