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In the context of a large-scale e-commerce platform, the team is deploying machine learning models to personalize user experiences and increase sales. The platform operates under strict data privacy regulations and has a high expectation for model performance and scalability. Given these constraints, which role is pivotal in ensuring that the outputs of the machine learning models are not only accurate but also effectively utilized to add significant value to the business while complying with data privacy laws? Choose the best option.