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

Which of the following definitions best describes 'Grain yield fresh weight basis'?

A. The amount in fresh weight basis of grain that was harvested per unit area or plant.
B. The weight of thousand grains.
C. The biomass partitioning to grain, as ratio of grain yield to aboveground biomass yield.
D. The number of effective tillers bearing spikes per area.

Answer: The amount in fresh weight basis of grain that was harvested per unit area or plant.