Lasiter Corp. reported net credit sales of $2,000,000 and cost of goods sold of $1,400,000 for 2017. On January 1, 2017, accounts receivable was $250,000. Amounts owed by customers increased by $20,000 during 2017. Rounding to two decimal places, what is Lasiter's accounts receivable turnover ratio for 2017?

a.8.33

b.7.69

c.8.00

d.7.41