Part A: The statement that BEST describes the theme of the text is:
B. Bears can be fascinating and unpredictable.
Part B: The piece of evidence from "Shadow of the Pines" that BEST supports the answer to part A is:
C. The closer she came toward Mr. Hernandez's refuge, the more mesmerized he became by her movement, the reddish-black hues of her coat, her enormous, dripping jaws clenched victoriously around her rotten prize.
This choice highlights both the fascination Mr. Hernandez feels for the bear's beauty and movement, as well as the unpredictability of the encounter as it becomes more intense.