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

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

A. k-means clustering
B. algorithm
C. UCUM Terms of Use
D. web content search

Answer: algorithm