plant leaves closing up when touched butterflies migrating south for the winter green insects sitting on green leaves earthworms moving through soil
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which description is an example of camouflage?
Possibilities:
- plant leaves closing up when touched
- butterflies migrating south for the winter
- green insects sitting on green leaves
- earthworms moving through soil

green insects sitting on green leaves