Wintel Electronics wants to begin forecasting sales using the single exponential smoothing method. What information would they need at a minimum in order to make the forecast? Pick the best answer from the options below:

Question $22$ options:

the last $3$ months sales

this month's forecasted sales and an average alpha smoothing constant for their industry

the last $24$ months forecasted sales and $24$ months actual sales and an average alpha smoothing constant for their industry

this month's actual sales and forecasted sales and an average alpha smoothing constant for their industry