Answer:
Project B has the highest PW, therefore,, it should be selected.
Explanation:
A B C
Investment cost -$27,000 -$56,000 -$42,500
Annual expenses $15,000 $13,000 $23,000
Annual revenues $23,000 $30,000 $32,000
Market value $6,500 $7,500 $9,000
NCFs (1-9) $8,000 $17,000 $9,000
NCF 10 $14,500 $24,500 $18,000
PW or NPV $10,195 $21,832 -$334