D
Below is a question with multiple-choice answers. Choose the correct option based on your reasoning.

### Question:
Members of a planning team build a model of a nearby stream and then block the stream to show how it can form a lake. Which is a limitation of the model?

### Choices:
A. showing how a nearby town will avoid flooding
B. explaining how the lake will be used for recreation
C. explaining how some of the water can be used for agriculture
D. showing how the dam will affect the plants and animals in the area

### Answer:
