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For an ecommerce web application on AWS, which AWS service configuration ensures that new orders processed by an Amazon API Gateway REST API are handled in the order received?
A
Publishing to an Amazon SNS topic and subscribing a Lambda function for order processing upon receiving an order.
B
Sending messages to an Amazon SQS FIFO queue and configuring it to invoke a Lambda function for order processing.
C
Using an API Gateway authorizer to block incoming requests during order processing.
D
Sending messages to an Amazon SQS standard queue and configuring it to invoke a Lambda function for order processing.
