In Jack London's "To Build a Fire," the main character is hiking alone through the Yukon wilderness in severe temperatures on his way to a mining camp. How does this setting affect the main character?

It reveals to the reader that the man has traveled through the Yukon before and knows a great deal about the wilderness, nature, and animals.

The setting is used only as a backdrop to the main events of the story, and plays only a minor role in the main character's development.

The setting becomes a vehicle for the man, showing his independent spirit and ability to survive the wilderness in drastic conditions.

It creates the conflict of the story by showing that the man is too inexperienced and unaware of the power of nature to survive the conditions.