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

Which of the following definitions best describes 'FM - AFIS Measurement'?

A. Standard method for the total phosphorus (P) concentration measured in a given volume of leaf extract
B. FLn, an AFIS measurement on the mean length of fibers calculated by number
C. Standard method for seed protein content (%)
D. Arealometer M. M=150.5 - 38.1*Arealometer I

Answer: Arealometer M. M=150.5 - 38.1*Arealometer I