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

The property 'P4 has time-span' applies to instances of 'E2 Temporal Entity', and 'E4 Period' is a subclass of 'E2 Temporal Entity'. Which class can appear as the value of 'P4 has time-span' for instances of 'E4 Period'?

A. E1 CRM Entity
B. E77 Persistent Item
C. E39 Actor
D. E52 Time-Span

Answer: E52 Time-Span