XYZ Computer Company has developed a new line of desktop computers. It is estimated that the cash returns generated by the new product line will be $600,000 per year for the next four years, and then $400,000 per year for two years after that (the cash returns occur at the end of each year). At a 5% interest rate, what is the present value of these cash returns?

	a.	$3,105,281
	b.	$2,516,793
	c.	$2,739,467
	d.	$3,934,57