Task: Property Constraint Reasoning (ontology: Arts_Media_Entertainment/CIDOC_CRM)

The property 'P196i is defined by' applies to instances of 'E92 Spacetime Volume', and 'E4 Period' is a subclass of 'E92 Spacetime Volume'. Which class can appear as the value of 'P196i is defined by' for instances of 'E4 Period'?

A. E28 Conceptual Object
B. E18 Physical Thing
C. E6 Destruction
D. E63 Beginning of Existence

Answer: E18 Physical Thing