Task: Class Definition Understanding (ontology: Food_Agriculture/Crop_Ontology)

Which of the following definitions best describes 'Green Leaf Biomass proportion'?

A. Proportion green leaves per unit area or plant.
B. An assessment of chlorosis symptoms.
C. The amount (weight) of root per unit area, volume or plant.
D. Growth habit as grade to which a plant is erect or prostrate.

Answer: Proportion green leaves per unit area or plant.