need help this was not right i think, due soon.

Skysong, Inc. purchased a tractor trailer for $159000. Skysong uses the units-of-activity method for depreciating its trucks and expects to drive the truck 1000000 miles over its 12-year useful life Salvage value is estimated to be $17000. If the truck is driven 74000 miles in its first year, how much depreciation expense should Skysong record? $11766. O $12221 O $9761 O $10508