Read the example.

Students are reading a story in their Language Arts class. In this story, the characters visit a tree often throughout the year. In the winter, the tree has lost its leaves and it looks bare. The birds that used to live in the tree have disappeared, and the tree is empty. In the spring, the tree has grown leaves again and it looks colorful. The birds have returned and built nests on its branches.

Which statement best describes the symbolism in the example?

A. The spring symbolizes emptiness.
B. The tree symbolizes change.
C. The birds symbolize the tree.
D. The tree symbolizes the characters.