Riverside Safari Resort has recently purchased 5 luxury SUV's for US$ 55,000 each (including taxes etc.). These cars will be depreciated in four years using the straight-line depreciation method. The book value of these vehicles at the end of the third year is together US$ $27,000. Based on this information, the annual depreciation of these vehicles will be:

$55,000

$62,000

$68,750

$62,500