Users Submit Requests to a Service That Takes Several Minutes

Multiple Choice

Users submit requests to a service that takes several minutes to process. A Solutions Architect needs to ensure that these requests are processed at least once, and that the service has the ability to handle large increases in the number of requests. How should these requirements be met?

A) Put the requests into an Amazon SQS queue and configure Amazon EC2 instances to poll the queue
B) Publish the message to an Amazon SNS topic that an Amazon EC2 subscriber can receive and process
C) Save the requests to an Amazon DynamoDB table with a DynamoDB stream that triggers an Amazon EC2 Spot Instance
D) Use Amazon S3 to store the requests and configure an event notification to have Amazon EC2 instances process the new object