Year 2016 2017 2018 2019 1568 1486 1371 1244 Month January February March April 827 791 809 766 819 807 834 809 829 810 May 878 881 886 813 804 787 769 801 1624 1474 1464 1164 June e July 0 August 1 September 2 October 13 November 14 December 15 1097 1086 815 789 841 842 803 868 1356 1257 1359 16 18 JIMIN Click here for the Excel Data File: c. Which forecasting model is appropriate based on the data for the total U.S. bookstore sales? Appropriate model