Answer:
D. The higher the wage, the less often his workers will choose to leave his firm.
Step-by-step explanation:
The cost that it implies to keep hiring new people and training them into doing a proper job with your business if often minimum compared to what you could save by underpaying your workers, so the thing that could lead him to increase his workers wage would be to increase the loyalty they have towards the company and to keep them happy at work and not have so much employees rotation, this will lead to an increase in efficiency and higher production.