The use of a seasonal index as a forecasting technique measures the ratio of the:

The use of a seasonal index as a forecasting technique measures the ratio of the:
A . average seasonal demand to the average demand for all periods.
B. average demand for all periods to the average seasonal demand.
C. average seasonal demand to the standard deviation of the demand for all periods.
D. standard deviation of the seasonal demand to the standard deviation of demand for all periods.

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Answer: A