(H) Dioxide Air pollution control specialists in southern California monitor the amount of ozone, carbon dioxide, and nitrogen dioxide in the air on an hourly basis. The hourly time series data exhibit seasonality, with the levels of pollutants showing patterns that vary over the hours in the day. On July 15, 16, and 17, the following levels of nitrogen dioxide were observed for the 12 hours from 6:00 A.M. to 6:00 PM. Click on the datafile logo to reference the data. DATA file 25 28 35 50 60 60 40 35 30 25 25 20 July 15: July 16: July 17: 28 30 35 48 60 65 50 40 35 25 20 20 35 42 45 70 72 75 60 45 40 25 25 25 (a) Choose the correct time series plot. (1) Level of Ningen Dioxide www Hour (iv) 8588 C (H) Level of Neogen Dioxide RSURES"