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

Which of the following definitions best describes 'Visual estimation - abaxial leaf vein pigmentation'?

A. Observe the storage root formation and rate it
B. Observe the latex production of the storage root and rate it
C. Observe the pigmentation of the abaxial leaf vein and rate it. Describe the most frequent expression of the distribution of the anthocyanin (purple) pigmentation shown in the veins of the lower surface of leaves
D. Observe the cracking of the storage root and rate it. Average cracking shown in ten plants

Answer: Observe the pigmentation of the abaxial leaf vein and rate it. Describe the most frequent expression of the distribution of the anthocyanin (purple) pigmentation shown in the veins of the lower surface of leaves