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

### Question:
Which example describes a behavioral adaptation?

### Choices:
A. A bird builds its nest in the ash near a volcano.
B. A whale has the ability to hold its breath for 20 minutes.
C. A fox's hair is white in the winter and brown in the summer.
D. A monkey has long arms that allow it to swing from one branch to another.

### Answer:
