During 2017 Sheffield Corp. had sales on account of $709000, cash sales of $307000, and collections on account of $508000. In addition, they collected $9400 which had been written off as uncollectible in 2016. As a result of these transactions the change in the accounts receivable indicates a:_________A. $191600 increase.B. $508000 increase.C. $516000 increase.D. $201000 increase