The multiplicative Winters' exponential smoothing model (WES) would most likely be appropriate in a situation where

Select one:

a. The data had trend and seasonal components with the seasonal waves constant in magnitude across the time series

b. The data had trend and seasonal components with the seasonal waves increasing in magnitude across the time series

c.The data had trend and seasonal components with the seasonal waves decreasing in magnitude across the time series

d. The data had trend and cycle components only

e. Both (b) and (c)