Final answer:
The attitude of the sons in the scenario can be attributed to the incentive pay system set up by their father. The sons would rather work at McDonald's because the incentive pay system creates a disparity in wages between the different tasks.
Step-by-step explanation:
The attitude from the sons in the given scenario can be attributed to the incentive pay system set up by their father. The sons would rather work at McDonald's because the incentive pay system creates a disparity in wages between the different tasks. While washing cars earns them $1 per car, waxing and detailing earn them $2 and $5 per car, respectively. Since their father charges less than local car washes, the sons are not motivated to spend more time on higher-paying tasks. This creates a situation where they fight over the chance to wash cars because that is the task that pays the least but takes the least amount of time.