Blossom Corporation currently manufactures a subassembly for its main product. The costs per unit are as follows: Funkhouser Company has contacted Blossom with an offer to sell it 4,300 of the subassemblies for $21 each. If Blossom buys the subassemblies, $3 of the fixed overhead per unit will be allocated to other products. Should Blossom make or buy the subassemblies? Blossom should to save \$ per unit