The time series of occupancy in a seaside resort in Queensland had the following chart: Time Series Chart of Hotel Occupancy at seaside resort 140 120 100 80 60 40 20 0 Q1 Q2 Q3 04 01 Q2 Q3 04 Q1 Q2 Q3 04 2018 2019 2020 The regression equation was found to be, Estimated Occupancy = 68.3 + 128.5Q, - 10.170; + 68.030 + 0.47t Where, t = 0 in the March quarter of 2018 and Q, Q; and Q, are the dummy variables for the March, September and December quarters, respectively. June is the benchmark quarter. A) Briefly explain two components of a time series you can identify in the chart. B) Interpret the coefficient of the September quarter