What are the considerations to configure decimal places in the central finance system landscape?

What are the considerations to configure decimal places in the central finance system landscape?
A . Differences in decimal places for currencies in source and central finance systems have no impact on documents posting in Central Finance system.
B . The currency exchange rates will take care of any differences in decimal places, thus no action is required.
C . Enter the number of decimal places in the source system as defined in the central finance system.
D . Enter the number of decimal places in the central finance system as defined in the source system.

Answer: A