For which scenario would an On-Demand rule be an appropriate solution? 

Answer options:

A. to perform a custom currency translation for a subset of accounts
B. to add a column with a calculation to a report
C. to copy data from one scenario to a different scenario
D. to allocate data to base entities prior to consolidation

C

Copy data from one scenario to another one. Reference: https://neonn.com/alwayson/demand-rules-hfm/