Watson Tax Planning Service has the following plant assets: Communications Equipment: Cost, $7,200 with useful life of eight years; Furniture: Cost, $19,200 with useful life of 12 years; and Computer: Cost, $13,200 with useful life of four years. (Assume residual value of all the assets is zero.) Watson's monthly depreciation expense calculated using the straight minusline

method is ________. (Round any intermediate calculations to two decimal places, and your final answer to the nearest cent.)

A.

$133.33

B.

$483.33

C.

$275.00

D.

$75.00