The passage that best expresses this contrast is this:
...We could not see how they managed the vessel. but this disappointment was the least of my sorrow.
<h3>Which passage shows the contrast?</h3>
The passage that best shows the contrast is the one that reflects the fact that Equiano was not really concerned about how the vessel was managed. In the first part of the sentence, we can see that Equiano was amazed by how his captors operated the ship.
However, this amazement was not really evident in the selected passage where he said that seeing how the vessel was managed was the least of his sorrow.
I would say C. at ten o'clock; modifies came. Adverb phrase always involves when, where, or how. In this sentence, you could ask when did the truck came? Then you adverb phrase would it came at ten o'clock.
The entire premise of the story is that two men are hunting each other on account of hatred derived from a centuries old land dispute. Society Notwithstanding the ingrained hatred the two men have for each other, they recognize the societal constraints placed on would-be-murderers.