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

Which of the following definitions best describes 'Russian wheat aphid damage'?

A. the concept in the plants caused by the agent Tilletia indica (syn. Neovossia indica).
B. The plant damage caused by root-lesion nematode, Pratylenchus neglectus.
C. The plant damage caused by Russian wheat aphid, Diuraphis noxis.
D. the concept in the plants caused by the agent Blumeria graminis (Erysiphe graminis) f. sp. tritici.

Answer: The plant damage caused by Russian wheat aphid, Diuraphis noxis.