
Answer:
Only projects C2 and C3 should be carried out since their net present value is positive  ($5,630 and $15,329 respectively). While project C1 should be rejected because its NPV is negative.
Explanation:
                       C1           C2           C3
initial investment       -$288,000   -$288,000    -$288,000
cash flow 1 Â Â Â Â Â Â Â Â Â Â Â Â Â $32,000 Â Â Â $116,000 Â Â Â Â $200,000
cash flow 2 Â Â Â Â Â Â Â Â Â Â Â Â $128,000 Â Â Â $116,000 Â Â Â Â Â $80,000
cash flow 3 Â Â Â Â Â Â Â Â Â Â Â Â $188,000 Â Â Â $116,000 Â Â Â Â Â $68,000
total                  $348,000    $348,000     $348,000
required rate of return =9%
NPV Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â -$5,737 Â Â Â Â Â Â $5,630 Â Â Â Â Â Â $15,329
NPV C1 = -$288,000 + $32,000/1.09 + $128,000/1.09² + $188,000/1.09³ = -$5,737
NPV C2 = -$288,000 + $116,000/1.09 + $116,000/1.09² + $116,000/1.09³ = $5,630
NPV C3 = -$288,000 + $200,000/1.09 + $80,000/1.09² + $68,000/1.09³ = $15,329