Task: Inferred Class Relation Reasoning (ontology: Food_Agriculture/Crop_Ontology)

After reasoning, which of the following classes is one valid superclass of 'Grain Deoxynivalenol content'?

A. BlkRustSus E 1to9
B. Net Blotch susceptibility
C. Spikelet number - Counting
D. Barley trait

Answer: Barley trait