Beta Incorporated can produce a unit of Zed for the following costs: direct materials, $10; direct tobor $20; ond incremental overhead, $30. An outside supplier offers to provide Beta with all of the Zed units it needs ot $58 per unit Beto Incorporated should Multiple Choice Buy Zed since the relevant cost to make it is $60. Buy Zed since the relevant cost to make it is $80. Make Zed since the relevant cost to make it is 560 Buy Zed since the relevant cost to make it is $10. Make Zed since the relevant cost to make it is $30