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

Which of the following definitions best describes 'BBCH 92 evaluation'?

A. Assessment of the date when 70% of the foliage turned color (color range depending) or fell
B. Assessment of the date when 20% of the foliage turned color (color range depending) or fell
C. Visual assessment with a reference scoring scale for cork industrial quality
D. Assessment of the date when 60% of the fruits reached their usual maximum size, but did not changed color yet

Answer: Assessment of the date when 20% of the foliage turned color (color range depending) or fell