The Criders Company has 12,000 units of obsolete inventory. The units originally cost $6,000. The company can either sell them for scrap at $.20 per unit or they can invest $2,000 to be able to sell them at a price of $.60 per unit. With regard to this decision, relevant costs or benefits include:

a. $6,000 only.

b. $2,000 and $.20 per unit only.

c. $.20 per unit, $.60 per unit, and $2,000.

d. $2,000 and $6,000 only