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

The property 'has quotation block amount basis' applies to instances of 'quoted exchange rate', and 'currency spot rate' is a subclass of 'quoted exchange rate'. Which class can appear as the value of 'has quotation block amount basis' for instances of 'currency spot rate'?

A. monetary amount
B. foreign exchange service
C. currency spot sell rate
D. international electronic funds transfer service

Answer: monetary amount