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

Which of the following definitions best describes 'Visual estimation - Storage root appearance -method NCSU'?

A. Observe the appearance of the storage root and rate it
B. Observe the reaction to Sweet potato wire worms and rate it
C. Observe the leaf general outline and rate it. Described from leaves located in the middle section of the vine
D. Observe the petiole pigmentation and rate it. Distribution of anthocyanin (purple) pigmentation in the petioles of leaves

Answer: Observe the appearance of the storage root and rate it