please help solve using excel or any other app. American Bottle, Inc. specializes in the manufacture of plastic containers.The data on monthly sales of $10-$ounce shampoo bottles for the last fouryears as shown below. Assume that you are at the end of February in year$3$ and answer the following; a$.$ In order to construct a triple exponential smoothing model, find theinitial intercept, slope and seasonal factors $($for each month$).$b$.$ Using the forecasting model, find the forecasts for the rest of the year $3$and year $4.$ Plot both the forecast and observed values on the same chart.c$.$ Assume that you have observed the data for March and then April ofyear $3,$ update the parameters of your forecasting model two times, oneafter each observation. Use alpha $=0,15,$ beta $=0,09$ and gamma $=0,1.$