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

The property 'has place of birth' applies to instances of 'person', and 'adult' is a subclass of 'person'. Which class can appear as the value of 'has place of birth' for instances of 'adult'?

A. place of birth
B. birth certificate identifier
C. identity document
D. national identification number

Answer: place of birth