Task: Property Constraint Reasoning (ontology: Business_Finance/Financial_Industry_Business_Ontology)

The property 'has option holder' applies to instances of 'option', and 'call option' is a subclass of 'option'. Which class can appear as the value of 'has option holder' for instances of 'call option'?

A. protective collar
B. option premium
C. option holder
D. strike price

Answer: option holder