From the list below, which esources would most likely be UNIT-LEVEL resources at a personal computer manufacturer. Each computer is custom manufactured to the specifications of the Individual customer Select all that apply. Make sure no question marks (?) are left in any boxes. Disk Drives purchased and used in computers Company President's salary Electrical power for operating manufacturing equipment used to produce each unit Setting up of computer controlled machines for production runs of basic computer parts Packaging materials for each unit shipped Freight charges for each unit shipped Design department costs employed in designing "the next generation of computer" Security for the manufacturing plant Salary of buyers who purchase only for the Home PC division