The caterer employees 5 units of capital and 2 workers. The owner is considering either hiring another worker or installing another workstation. If the workstation costs $8 per hour and workers cost $12 per hour, then at the margin, what is the most cost effective choice for the owner to make? The owner should hire another worker because he would get more additional production per dollar for money spent on an employee than a workstation The owner should buy another workstation because he would get more additional production per dollar for money spent on a workstation than on an employee The owner should hire another worker because he would not need to pay them as much The owner should hire the additional worker and buy the workstation so he can avoid diminishing marginal product