Task: Property Constraint Reasoning (ontology: Sciences/Conference)

The property 'has a committee co-chair' applies to instances of 'Committee', and 'Organizing committee' is a subclass of 'Committee'. Which class can appear as the value of 'has a committee co-chair' for instances of 'Organizing committee'?

A. Conference participant
B. Written contribution
C. Co-chair
D. Chair

Answer: Co-chair