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

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

A. rate of return
B. price determination method
C. date time
D. bid ask spread

Answer: date time