Task: SWRL-based Rule Reasoning (ontology: Business_Finance/Financial_Industry_Business_Ontology)

Suppose an individual ?x satisfies: retractable preferred share with extendable maturity date(?x). Which conclusion is one valid inferred conclusion?

A. preferred share with fixed maturity date(?x)
B. preferred share with auction rate dividend(?x)
C. preferred share with adjustable rate dividend(?x)
D. exchangeable preferred share(?x)

Answer: preferred share with fixed maturity date(?x)