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

The property 'was a committee of' applies to instances of 'Committee', and 'Steering committee' is a subclass of 'Committee'. Which class can appear as the value of 'was a committee of' for instances of 'Steering committee'?

A. Conference volume
B. Conference contributor
C. Reviewer
D. Conference contribution

Answer: Conference volume