The correct answer is:
It pauses in describing the current action to add background information that heightens the tension of the conflict.
The second paragraph provides essential background about the longstanding feud between Ulrich and Georg, which not only explains Ulrich's motivations but also sets up a sense of impending conflict. This context creates suspense by indicating that the stakes are high and that their animosity could lead to a violent encounter in the dark, foreboding forest.