Mein Co.'s sales totaled $300,000 for the current year. Mein's cost of goods sold was $150,000. Mein's accounts receivable balance was $20,000 on January 1 and $30,000 on December 31. What was Mein's accounts receivable turnover rate for the current year?

	a.	10 times.
	b.	6 times.
	c.	15 times.
	d.	12 times.