An operational system is which of the following
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An operational system is which of the following?
A.A system that is used to run the business in real time and is based on historical data.
B.A system that is used to run the business in real time and is based on current data.
C.A system that is used to support decision making and is based on current data.
D.A system that is used to support decision making and is based on historical data.