The Hanna Company uses straight-line depreciation and is considering a capital expenditure of which the following relevant cash flow data have been estimated:

Estimated useful life:	3 years
Initial investment:	$500,000
Savings year 1:	$210,000
Savings year 2:	$150,000
Savings year 3:	$225,000
Residual value after 3 yrs	$50,000

The total depreciation expense over the life of the asset is

A) 150,000

B) 550,000

C) 450,000

D) 585,000