Solve question A.

Accessing the Excel Data File link below use the data that reports total, monthly U.S. book-store sales in millions of dollars from January 2019 to March 2021 to respond to the following questions. (Reference source: https://www.census.gov/retail/index.html#mrts, find "Monthly Retail Trade Report," then select "Time Series/Trend Charts" to find the data for the total U.S. bookstore sales.) Year Month 2019 2020 2021 January $1, 029 $990 $820 February 585 593 459 March 603 406 547 April 650 169 514 May 696 275 632 June 613 388 703 July 591 437 712 August 1, 124 770 1, 154 September 871 620 883 October 650 455 697 November 640 496 708 December 1, 074 900 1, 203 Click here for the Excel Data File Required: a. Using a time series graph of the data, which forecasting model is appropriate based on the data for the total U.S. bookstore sales? Appropriate model Seasonally adjusted trend