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

The property 'capable of' applies to instances of 'independent continuant', and 'porphyrins' is a subclass of 'independent continuant'. Which class can appear as the value of 'capable of' for instances of 'porphyrins'?

A. agonist
B. obsolete median fin skeleton
C. process
D. obsolete fast muscle cell somite 11

Answer: process