Solve it correctly please. I will rate accordingly with multiple votes. Answer only if 100% sure.

Which of the following is performed to modify the data from the Data Visualization Application for time series forecasting in this application? I[heck all that apply. C] Add indicator columns for seasonality. E] Change the data type of the Month column from numeric to categorical. E] Add a column to aggregate the number of COVID deaths by month. C] Remove columns that are irrelevant. C] Add a column to account for the time period in the series. Question 2 0.2 pts Which of the following time-series forecasting smoothing methods is selected as least biased in this application to track the recent movement of data to forecast CDUID mortality? O Naive O Exponential smoothing with alpha = CL? C) Moving average with k=3 O Linear regression C} Simple average