What is the iOS 'Sensitive Content Analysis' (NSCA) feature introduced in iOS 17, and how does it relate to on-device data storage privacy?

• A.A) NSCA uploads all photos to Apple's servers for content analysis to detect nudity and CSAM
• B.B) NSCA performs on-device image analysis using Core ML models to detect sensitive content (such as nudity warnings) without the image ever leaving the device; the analysis results are stored locally and are not transmitted to Apple, preserving user privacy
• C.C) NSCA uses the Secure Enclave to encrypt sensitive photos detected in the photo library
• D.D) NSCA scans the Keychain for sensitive string patterns that could indicate stored passwords in plaintext