During 2021, it cost Crane, Inc. $8 per unit to produce part T5. During 2022, it has increased to $12 per unit. In 2022, Swifty Company has offered to provide Part T5 for $7 per unit to Crane. As it pertains to the make-or-buy decision, which statement is true? Differential costs are $5 per unit. O Incremental costs are $1 per unit. Incremental revenues are $4 per unit. Net relevant costs are $1 per unit