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

The property 'is achieved in session' applies to instances of 'Achievement', and 'Minigame' is a subclass of 'Achievement'. Which class can appear as the value of 'is achieved in session' for instances of 'Minigame'?

A. Item
B. playing area
C. Agent
D. Session

Answer: Session