The correct answer is Azure AI Content Safety and Azure AI Vision.

Azure AI Vision provides built in image analysis and explicit content detection so it can automatically flag adult or offensive photos with minimal custom development. It returns moderation labels and confidence scores that let the application block or route images without having to build and maintain your own models.

Azure AI Content Safety supplies managed moderation policies and safety scoring that work across images and text and it complements Vision by centralizing moderation rules and reducing the amount of custom code and ongoing model maintenance required.

Azure AI Document Intelligence is focused on extracting structured data from documents and scanned pages and it is not designed for image moderation, so it is not appropriate for blocking explicit photos.

Azure AI Custom Vision can be used to build custom image classifiers but it requires training data and ongoing model management, so it does not minimize development work as effectively as the managed moderation services.

Azure Content Moderator is a legacy service and Microsoft is steering customers toward the newer Content Safety and Vision offerings. It is therefore deprecated for new deployments and is less likely to be the correct choice on current exams.

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