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

The property 'is sub-fund of' applies to instances of 'pooled fund', and 'collective investment vehicle' is a subclass of 'pooled fund'. Which class can appear as the value of 'is sub-fund of' for instances of 'collective investment vehicle'?

A. fund unit
B. fund of funds
C. pooled fund
D. sovereign wealth fund

Answer: pooled fund