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

The property 'has trading date time' applies to instances of 'security price', and 'offer price' is a subclass of 'security price'. Which class can appear as the value of 'has trading date time' for instances of 'offer price'?

A. closing price determination method
B. rate of return
C. price determination method
D. date time

Answer: date time