This scenario requires combining multiple CDSS and policy types for comprehensive protection. - Option A (Correct): Security policy rules based on user identity, zones, application App-IDs, and URL categories are needed to allow sanctioned social media and block unsanctioned ones. - Option B (Correct): WildFire, Antivirus, and Threat Prevention profiles (all enhanced by CDSS) are applied to the allow rules to scan for malware and exploits in the allowed traffic. - Option C (Correct): Data Filtering profiles (enhanced by Enterprise DLP CDSS) are configured to detect sensitive data and applied to policy rules that match upload traffic to cloud storage, with a block action for unsanctioned destinations. - Option D (Correct): Decryption is mandatory to inspect encrypted traffic (HTTPS), which is commonly used by social media, cloud storage, and malicious sites/C2, to enable App-ID, Content-ID, and Data Filtering on the actual content. - Option E (Correct): Advanced URL Filtering and Advanced DNS Security profiles are applied to Security Policy rules (typically outbound to the Public zone) to block access based on malicious URLs and C2 domains at the web and DNS layers, respectively. All these elements work together to provide multi-layered security for various traffic types and threats.