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

The property 'P14 carried out by' applies to instances of 'E7 Activity', and 'E66 Formation' is a subclass of 'E7 Activity'. Which class can appear as the value of 'P14 carried out by' for instances of 'E66 Formation'?

A. E2 Temporal Entity
B. E4 Period
C. E71 Human-Made Thing
D. E39 Actor

Answer: E39 Actor