What is true about a (alpha. in the Exponential Smoothing Forecast (ESF) method?

What is true about a (alpha. in the Exponential Smoothing Forecast (ESF) method?

A.
(alphA. equals the old forecast.

B.
(alphA. Is always greater than one.

C.
(alphA. Is calculated by Oracle Inventory.

D.
(alphA. is multiplied by the forecast error to determine the adjustment.

E.
(alphA. equals the old forecast plus a portion of the forecast error from the previousperiod.

Explanation: