How do paragraphs 18-20 contribute to the development of the theme? A. They illustrate that the people do not know what will result from their actions.
B. They demonstrate how dangerous the hole is to human life and why it must be
filled.
C. They give an example of how changes in the environment can positively affect
human beings.
D. They show how people that live in close contact with nature are better able to
understand natural changes.