Choose the correct statement (s)

A. P occurs naturally in rocks and released in water by weathering.

B. P exist as orthophosphate and organically bound phosphate in water.

C. dissolved inorganic P is also referred as soluble reactive phosphorus.

D. P is limiting nutrient in aquatic system.

E. It is difficult to differentiate between Zooplankton-P, bacterial-P, algae-P and inorganic P.

Choose the most appropriate answer from the options given below: