The correct answer is B.

When a bank faces liquidity transfer restrictions across different jurisdictions or entities, it cannot assume that surplus liquidity in one part of the organization is available to cover deficits in another. Therefore, the best initiative is to explicitly incorporate these restrictions into the liquidity stress testing framework. By assessing the effect of the restrictions on enterprise-level liquidity under both normal and stressed conditions, the bank can accurately measure its localized and consolidated liquidity risks. This ensures that adequate liquidity buffers are maintained where they are trapped or needed, rather than overestimating overall liquidity adequacy.

Choice A is incorrect: While resolving the transfer restrictions might be a strategic goal, stress testing is about assessing risks given current and projected states, not just seeking to remove them. Choice C is incorrect: Stopping stress testing is a poor risk management practice. Stress testing must continue precisely to understand the impact of such restrictions. Choice D is incorrect: While sourcing other types of liquidity may be a mitigating action, it does not address the core necessity of properly evaluating the impact of the existing transfer restrictions within the stress testing model itself.