Which Statement About the Phosphorus Cycle Is False

Multiple Choice

Which statement about the phosphorus cycle is false?

A) The main abiotic reservoir for phosphorus is in the water.
B) Plants release dissolved phosphate ions into the soil.
C) Phosphates that drain from soils into the sea become part of new rock and will cycle back into living organisms.
D) Guano can be used by farmers to add phosphorus to the soil.