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

The property 'P48 has preferred identifier' applies to instances of 'E1 CRM Entity', and 'E53 Place' is a subclass of 'E1 CRM Entity'. Which class can appear as the value of 'P48 has preferred identifier' for instances of 'E53 Place'?

A. E31 Document
B. E21 Person
C. E42 Identifier
D. E33 Linguistic Object

Answer: E42 Identifier