E8.14 (LO 4) AN The following information (in millions) was taken from the December 31 financial statements of Canadian National Railway Company: 2016 2015 $ 903 28 Accounts receivable, gross Allowance for doubtful accounts Accounts receivable, net Revenues Total current assets Total current liabilities 2017 $ 1,000 16 984 13,041 2,190 3,983 875 12,037 2,107 3,008 $ 885 7 878 12,611 2,153 2,998 Instructions a. Calculate the 2017 and 2016 current ratios. b. Calculate the receivables turnover and average collection period for 2017 and 2016. c. Comment on any improvement or weakening in CN's liquidity and its management of accounts receivable