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

The property 'uses software' applies to instances of 'software', and 'RMAExpress' is a subclass of 'software'. Which class can appear as the value of 'uses software' for instances of 'RMAExpress'?

A. software
B. Derivatives allowed
C. pathologic primary tumor stage for kidney according to AJCC 7th edition
D. CART

Answer: software