7 During 2019, it cost Wesleyan, Inc. $18 per unit to produce part A71. During 2020, it has increased to $21 per unit. In 2008, Southwestern side Company has offered to provide Part A71 for $14 per unit to Wesleyan. As it pertains to the make-or-buy decision, which statem is true? * (2 Points) Differential costs are 57 per unit. Incremental costs are 54 per unit. Net relevant costs are 54 per unit. Incremental revenues are 53 per unit