== O For the following time series, select three statements that describe it correctly. Week 10 Week 20 Week 30 Week 40 Week 50 Week 60 Week 70 Week 80 Week 90 Week 100 Select more than one: Select 3 correct answer(s) a. There are signs of a trend. b. There is a clear indication of a cycle or seasonality. c. There is a clear indication of a black swan event. d. This is an example of an additive time series. e. This is an example of a multiplicative time series