6. (Percentage of sales-spontaneous accounts) In the past, a company's accounts receivable turnover ratio has been 12 times, and the company does not expect this relationship to change in the coming year. Using the percentage-of-sales method, determine the level of sales that can be supported by the following end- of-coming-year accounts receivable balances if ac- counts receivable were a spontaneous asset: a. $100,000 b. $250,000 c. $500,000 d. $1,000,000