Read the opening paragraph of "To Build a Fire” by Jack London, then answer the question. Day had dawned cold and gray when the man turned aside from the main Yukon trail. He climbed the high earth-bank where a little-traveled trail led east through the pine forest. It was a high bank, and he paused to breathe at the top. He excused the act to himself by looking at his watch. It was nine o’clock in the morning. There was no sun or promise of sun, although there was not a cloud in the sky. It was a clear day. However, there seemed to be an indescribable darkness over the face of things. That was because the sun was absent from the sky. This fact did not worry the man. He was not alarmed by the lack of sun. It had been days since he had seen the sun.

–“To Build a Fire,”
Jack London

Based on the text, which prediction is valid?

An animal will attack the man, as hinted at by the dark sky.
The man will safely go on a hike, as hinted at by the weather.
The man will run into friends, as hinted at by his lack of worry.
Something bad will happen to the man, as hinted at by the threatening sky.