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

Which of the following definitions best describes the instance 'Euroclear Clearstream common code scheme'?

A. proprietary identification scheme for securities identifiers managed by the London Stock Exchange Group's LSEG Financial Solutions
B. national security identification scheme used to identify all North American stocks and registered bonds for the purposes of facilitating clearing and settlement of trades
C. proprietary identification scheme for securities identifiers formerly managed by SIX Telekurs Ltd, a subsidiary of the SIX Group (Swiss Infrastructure and eXchange), now SIX Financial Information AG
D. nine-digit security identification scheme, defined originally by Euroclear and CEDEL (now Clearstream) that is used to identify securities in Europe for the purposes of facilitating clearing and settlement of trades

Answer: nine-digit security identification scheme, defined originally by Euroclear and CEDEL (now Clearstream) that is used to identify securities in Europe for the purposes of facilitating clearing and settlement of trades