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

The property 'is implemented by' applies to instances of 'algorithm', and 'RMA++' is a subclass of 'algorithm'. Which class can appear as the value of 'is implemented by' for instances of 'RMA++'?

A. software
B. audio format
C. single generalization specification
D. pattern discovery task

Answer: software