Task: Property Constraint Reasoning (ontology: Earth_Environment/SWEET)

The property 'has volume' applies to instances of 'geometrical object 3d', and 'air space' is a subclass of 'geometrical object 3d'. Which class can appear as the value of 'has volume' for instances of 'air space'?

A. Caryopilite
B. Cylindrite
C. volume
D. Kammererite

Answer: volume