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

After reasoning, which of the following classes is one valid superclass of 'Fusarium Head Blight severity'?

A. Powdery Mildew susceptibility - Estimation
B. 1-9 Spike density scale
C. Flowering time - Computation
D. Barley trait

Answer: Barley trait