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A web application uses Amazon API Gateway with a Lambda function and DynamoDB, secured by Amazon Cognito. How to restrict premium content access to only subscribed users with minimal operational overhead?
A
Enable caching and throttling on API Gateway.
B
Configure AWS WAF with subscription-based filtering rules on API Gateway.
C
Set fine-grained IAM permissions for premium content in DynamoDB.
D
Use API usage plans and keys to control access for non-subscribers.
