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

The property 'has a committee 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 chair' for instances of 'Organizing committee'?

A. Chair
B. Co-chair
C. Passive conference participant
D. Active conference participant

Answer: Chair