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

Which of the following definitions best describes the instance 'Telekurs security identifier scheme'?

A. 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
B. national security identification scheme used to identify all stocks and registered bonds in the United Kingdom for the purposes of facilitating clearing and settlement of trades
C. proprietary identification scheme for securities identifiers managed by the London Stock Exchange Group's LSEG Financial Solutions
D. 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

Answer: 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