The Fisher Company purchased a machine on October 1, 2007, for $80,000. At the time of acquisition, the machine was estimated to have a useful life of five years and an estimated salvage of $5,000. Fisher has recorded monthly depreciation using the straight-line method. On April 1, 2009, the machine was sold for $50,000. What should be the loss recognized from the sale of the machine?

a.	$ 0
b.	$2,500
c.	$5,000
d.	$7,500

Please explain the answer. Thank you.