The data below represents a spreadsheet of observed data for a variable X for a three year period from July 13 to June 16 ( 36 observations). Columns 3,4 , and 5 are some reasons. [Press CTRL and "_" to make the graphics appear appear in full by making the font smaller. Press CTRL and " + " to revert back to the original font size]. Column 5 is most likely to be Select one: a. The seasonal column of a Winters Exponential Smoothing (WES) model b. The seasonal relatives of a decomposition model c. The forecast column of a Winters Exponential Smoothing (WES) model d. The centred moving average of a decomposition model