by burrowing under the soil by crawling around in the pan by staying where it was placed by trying to crawl out of the pan
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: An earthworm was placed on top of a thick layer of moist topsoil in a pan. The pan was placed in a room with the lights on. How did the earthworm most likely respond to these conditions?
Possibilities:
- by burrowing under the soil
- by crawling around in the pan
- by staying where it was placed
- by trying to crawl out of the pan

by burrowing under the soil