Task: Inferred Class Relation Reasoning (ontology: Business_Finance/Financial_Industry_Business_Ontology)

After reasoning, which of the following classes is one valid superclass of 'bankers' bank subject to reserve requirements'?

A. U.S. bank
B. uninsured state branch of foreign banking organization
C. uninsured federal agency of foreign banking organization
D. foreign banking organization as a bank holding company

Answer: U.S. bank