1. Information for Year 2 and Year 1 is presented below for SPKY, which uses the straight-line depreciation method.

   	Year 2	Year 1
   Property, plant, and equipment	$250,000	$190,000
   Accumulated depreciation	100,000	85,000
   Depreciation expense	62,500	47,500
   Net sales	1,000,000	900,000
   Total assets	625,000	475,000

   According to the data for Year 2, what is the average life of the companys property, plant, and equipment, rounded to one decimal place?

   	a.	1.6 years
   	b.	2.5 years
   	c.	4.0 years
   	d.	5.0 years