Answer:
I'm pretty sure the answer is B
Although, I'm not sure about the entirety of this question, when reviewing claims and evidence, check your sources to make sure they are reliable.
Forest soils because forests cover most of the land but not as much as the ocean
Answer:
Mycorrhiza is a symbiotic association in between the green plants and fungus.
The micorrhiza are located in the roots of the vascular plants. The Green plants performs the process of photosynthesis and the sugars produced are supplied to the Micorrhizas.
The fungus supplies the nutrients, water such as phosphorus that is absorbed from the soil to the plant body.