A company's AI risk team is asked to assess the risk of deploying a generative AI system for creating marketing copy. The legal team flags a concern about the system potentially reproducing copyrighted material from its training data. What is the MOST appropriate technical control to mitigate this risk?

B is correct because technical output controls that detect similarity to copyrighted works before content is published provide direct, automated protection against copyright infringement. This addresses the specific legal risk identified. User instructions (A) are a behavioral control that can be bypassed and don't address the model's tendency to reproduce training data. Human review (C) is a good complementary control but relies on reviewer knowledge of all copyrighted works. A disclaimer (D) does not prevent infringement or reduce legal liability.