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

The property 'buys' applies to instances of 'buyer', and 'customer' is a subclass of 'buyer'. Which class can appear as the value of 'buys' for instances of 'customer'?

A. ServiceProvider
B. product
C. transaction confirmation
D. custom product

Answer: product