The Primrose Company has 14,000 units of obsolete inventory. The units originally cost $7,000. The company can either sell them for scrap at $0.30 per unit or they can invest $3,000 to be able to sell them at a price of $0.65 per unit. With regard to this decision, relevant costs or benefits include:

1) $7,000 only

2) $3,000 and $0.30 per unit only.

3) $0.30 per unit, $.65 per unit, and $3,000.

4) $3,000 and $7,000 only.