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

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

A. software
B. volume unit
C. sproc
D. RIKEN Copyright

Answer: software