Task: SWRL-based Rule Reasoning (ontology: Food_Agriculture/Crop_Ontology)

Suppose an individual ?x satisfies: WKillSus E 1to9(?x). Which conclusion is one valid inferred conclusion?

A. LfScaldSev Cp pct(?x)
B. MaltAAmyCct M DU(?x)
C. Variable(?x)
D. Stem upper node pigmentation - Estimation(?x)

Answer: Variable(?x)