Answer:
A. to build tension in the story
Step-by-step explanation:
Option A is the correct answer.
This is true because from the passage, we discover that Father Wolf is introduced. As he makes that sound and stated that "It is time to hunt again", there is a feeling of anxiety and fear that tends to well up in the reader. At this point, the reader will want to discover what happens next.
Then the reader's feeling of anxiety heightens when "a little shadow with bushy tail" is introduced into the the scene. At this time, the reader feels that something will happen between Father Wolf and that creature. This scenario actually describes how tension is developed in a story.