a bear hibernating in the winter a spider spinning a web in a tree a butterfly migrating to the south a dog scratching at a door to go out
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which characteristic is an example of learned behavior?
Possibilities:
- a bear hibernating in the winter
- a spider spinning a web in a tree
- a butterfly migrating to the south
- a dog scratching at a door to go out

a dog scratching at a door to go out