• Amazon Ad Server
• Seller Central
• Amazon DSP

The correct answer is: Amazon DSP

Explanation: AMC rule-based audiences can be activated and used in Amazon DSP campaigns. According to the official documentation, the AMC rule-based audience API allows advertisers to create and activate custom audience segments specifically for Amazon DSP. Rule-based audiences built in AMC can be pushed and synchronized with Amazon DSP accounts for ad targeting and campaign optimization. This integration expands the advertiser’s reach and targeting capabilities beyond standard audiences .

Official Reference URL: https://advertising.amazon.com/API/docs/en-us/guides/amazon-marketing-cloud/audiences/rule-based-lookalike