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

The property 'P46i forms part of' applies to instances of 'E18 Physical Thing', and 'E24 Physical Human-Made Thing' is a subclass of 'E18 Physical Thing'. Which class can appear as the value of 'P46i forms part of' for instances of 'E24 Physical Human-Made Thing'?

A. E9 Move
B. E18 Physical Thing
C. E7 Activity
D. E6 Destruction

Answer: E18 Physical Thing