Read the excerpt below and answer the question. Although the villagers had forgotten the ritual and lost the original black box, they still remembered to use stones. The pile of stones the boys had made earlier was ready; there were stones on the ground with the blowing scraps of paper that had come out of the box. Mrs. Delacroix selected a stone so large she had to pick it up with both hands and turned to Mrs. Dunbar. "Come on," she said. "Hurry up."

In this excerpt, the references to stones create at the end of "The Lottery."

allegory
suspense
foreshadowing
backstory