Task: Property Constraint Reasoning (ontology: Business_Finance/Financial_Industry_Business_Ontology)

The property 'has guarantor' applies to instances of 'contract', and 'verbal contract' is a subclass of 'contract'. Which class can appear as the value of 'has guarantor' for instances of 'verbal contract'?

A. guaranty
B. insurer
C. insurance-backed guaranty
D. guarantor

Answer: guarantor