In Workday, a configurable compensation basis is used when an organization needs to group multiple compensation plans—such as salary, commission, and bonus—for purposes of calculation, validation, guidelines, and reporting. This type of basis allows administrators to explicitly select which compensation plans are included and define how they interact.

For a sales team, compensation commonly consists of base salary, variable commission earnings, and incentive or bonus plans. A configurable compensation basis is the only option that supports combining these different plan types into a single, controlled compensation framework. It also allows ranking, eligibility rules, and advanced controls such as Manage Basis Total.

Compensation grades define pay ranges and are not used to aggregate compensation components. Calculated compensation bases derive values from formulas and are not appropriate when simply grouping plans. The delivered Total Salary and Allowances basis does not include commission plans and cannot be extended to meet this requirement.

Therefore, creating a configurable compensation basis that includes salary, commission, and bonus plans is the correct and Workday-recommended solution, making option A correct.