• Audiences cannot be modified once created
• Audiences are created via SQL logic
• Audiences cannot exceed 2000 records

The correct answer is: Audiences cannot exceed 2000 records

Explanation: The claim that “Audiences cannot exceed 2000 records” is incorrect. According to the official documentation, rule-based audience seed lists must contain a minimum of 500 user_ids and a maximum of 500,000 user_ids. If a seed audience contains fewer than 500 or more than 500,000 user_ids, creation will fail. The allowed size far exceeds 2000 records, confirming this statement is false.

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