In Workday, configurable compensation bases allow organizations to control how compensation plans relate to one another and to enforce limits or proportions within a total compensation structure. The Manage Basis Total option is specifically designed to impose constraints on how much certain plan types can contribute relative to the overall compensation basis.

In this scenario, the business requirement is to ensure that salary plans do not exceed 50% of the total compensation for Indian employees. This requirement is achieved by enabling Manage Basis Total on the Total Cost (India) compensation basis and setting a maximum percentage of 50 for salary plans . This configuration enforces the rule automatically during compensation proposals and validations.

Changing the ranking of the compensation basis has no impact on percentage enforcement; rankings only determine precedence when multiple bases apply. Fixed compensation bases do not support proportional controls and would remove flexibility. Removing retirement plans would alter the total compensation calculation but would not guarantee the 50% salary cap.

Therefore, configuring Manage Basis Total with a salary plan maximum of 50% is the correct and Workday-recommended solution to enforce this business rule, making option B the correct answer.