Which of the following is required to perform currency conversion in an SAP HANA information model?

Which of the following is required to perform currency conversion in an SAP HANA information model?
A . A set of technical tables are required to store currencies and exchange rate types and rates
B . An innerjoin is required between the Open ODS View measures and the exchange rate table
C . An interface to define how the currency conversion should be processed
D . Setting a semantic type to a measure so the amount always includes a currency
E . Storing the currency and the exchange rate on the day of the transaction will improve performance

Answer: A,C,D