Answer the following question given this paragraph: 

The aphotic zone is water deeper than 200 meters. This is where too little sunlight penetrates for photosynthesis to occur. As a result, food must be made by chemosynthesis or else drift down from the water above.


Q: What is the minimum depth in the aphotic zone?

 Choices:

- 150 meters

- 450 meters

- 10 meters

- 200 meters

A:
200 meters
