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

### Question:
The snowshoe hare was once common in Maryland. In 1986, researchers in the state noted that the snowshoe hare was no longer found in Maryland. Which statement best explains why the snowshoe hare is no longer found in Maryland?

### Choices:
A. Water quality has improved.
B. There are too many trees.
C. The temperature is too cold.
D. Housing developments have replaced fields.

### Answer:
