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

Which of the following definitions best describes 'Grain density - Measurement'?

A. Determination of alcohol-soluble fructose content in dry matter by High-Performance Liquid Chromatography (HPLC)
B. Measure the weight of a volume of grains.
C. Weigh the fresh sample of an organ. The organ may be for instance leaf (Lf), panicle (Pcle), main shoot stem (MnShoStm), internode (InterNod).
D. Mineralization of 1g of flour and titration of nitration content.

Answer: Measure the weight of a volume of grains.