(Ch12) The ABC Block Company purchased a new office computer costing $4500. During the third year, the computer is declared obsolete and is donated to the local tech training school. Using an interest rate of 10%, what is the PW of the Straightline depreciation and donation deductions? Assume that no salvage value was initially declared and that the machine was expected to last 5 years. a) $2958 b) $4678 c) $3110 d) $3591