Which detail from "To Build a Fire" best supports the idea that there was hidden danger along the actual Yukon trail? - And in this fashion held the dog, while it snarled and whined and struggled.

- When it is seventy-five below zero, a man must not fail in his first attempt to build a fire—

- Where the soft, unbroken snow seemed to advertise solidity beneath, the man broke through.

- He was alone; and he had saved himself. Those old-timers were rather womanish.