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

The property 'develops from' applies to instances of 'independent continuant', and 'calcium(2+)' is a subclass of 'independent continuant'. Which class can appear as the value of 'develops from' for instances of 'calcium(2+)'?

A. independent continuant
B. obsolete tunica vasculosa plexus
C. inorganic molecular entity
D. anatomical line

Answer: independent continuant