Task: Property Constraint Reasoning (ontology: Legal/LKIF_Core_Ontology)

The property 'held by' applies to instances of 'Mental Object', and 'Proposition' is a subclass of 'Mental Object'. Which class can appear as the value of 'held by' for instances of 'Proposition'?

A. Agent
B. Communicated Attitude
C. Action
D. Document

Answer: Agent