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

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

A. Session
B. Leaderboard
C. PopulatedPlace
D. playing area

Answer: Session