I hope this is correct??

On 1 January 2008, a new motor vehicle with a useful life of 4 years and an estimated residual value of $12 000 was purchased by a business for $54 000. The straight-line method is employed and the financial year ends on 31 December. What was the balance of accumulated depreciation for the motor vehicle as at 31 December 2010? y a business for $54 000. The straight-line method is Select one: $42 000 O $31 500 $21 000 none of the above