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How can a developer implement a gradual rollout of a Lambda function update to only 10% of production users, after testing the updated code in a test environment?
A
By updating the Lambda code, creating a new version, and setting up a trigger with traffic weights to route 90% to the current version and 10% to the new version.
B
By deploying the updated code in a new Lambda function and using an alias to direct 90% of traffic to the existing function and 10% to the updated function.
C
By updating the Lambda code to a new version and using a proxy integration to split traffic, with 90% going to the production version and 10% to the updated version.
D
By updating the Lambda function, creating an alias, and configuring traffic weights through the alias to allocate 90% to the production version and 10% to the new version.
