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

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

A. obsolete regional part of sacral spinal cord
B. obsolete line from trochlea of humerus to proximal head of humerus
C. independent continuant
D. obsolete cranial muscle

Answer: independent continuant