Final answer:
A statement that suggests the top executives work longer hours and have more responsibilities would best support the fairness of their pay at Big Mart.
Step-by-step explanation:
If true, a statement such as "The top executives work longer hours and have more responsibilities than the average employee" would best support the fairness of the executive pay at Big Mart. This statement suggests that the higher compensation for top executives is justified because they have a greater workload and contribute more to the success of the company. By highlighting the additional effort and value provided by the top executives, it can be argued that their higher pay is fair.