Task: Instance Description Understanding (ontology: Business_Finance/Financial_Industry_Business_Ontology)

Which of the following definitions best describes the instance 'ZZ216659451'?

A. contract IY7VKEUR45886 swap leg 1 that is a fixed interest rate leg
B. ISIN for sample swap contract IY7VKEUR45886
C. sample contract the instance
D. unique swap identifier for sample swap contract the instance

Answer: ISIN for sample swap contract IY7VKEUR45886