• Generating delivery metrics per Amazon audience
• Generating delivery metrics per campaign and per line item
• Determining how a first-party uploaded audience compares to Amazon audiences

The correct answer is: Determining how a first-party uploaded audience compares to Amazon audiences

Explanation: With an overlap query in AMC, you can determine how a first-party uploaded audience compares to Amazon audiences. Overlap analysis compares two or more groups (such as your first-party list and Amazon’s segments) by user_id, revealing shared and unique users, as well as providing affinity and percentage scores.

Reference content: From the official Amazon documentation (Enhanced scoring for overlapping AMC audiences):

“Audience overlap analysis is a powerful tool that helps advertisers understand how their target audiences intersect and relate to one another. … Compare your own first-party audiences, custom uploaded audiences, and Amazon standard segments to determine how much overlap they share.”