During the current accounting period, revenue from credit sales is $671,000. The accounts receivable balance is $51,480 at the beginning of the period and $52,200 at the end of the period. Which of the following statements is true?

	a)	The receivables turnover ratio is 12.9.
		b) On average, it takes 12.9 days to collect payment from credit customers.
		c) The receivables turnover ratio is 28.3.
		d) On average, the company sells its inventory every 28.3 days.