A Web Application Runs on Amazon EC2 Instances Behind an Application

Multiple Choice

A web application runs on Amazon EC2 instances behind an Application Load Balancer. The application allows users to create custom reports of historical weather data. Generating a report can take up to 5 minutes. These long-running requests use many of the available incoming connections, making the system unresponsive to other users. How can a solutions architect make the system more responsive?

A) Use Amazon SQS with AWS Lambda to generate reports.
B) Increase the idle timeout on the Application Load Balancer to 5 minutes.
C) Update the client-side application code to increase its request timeout to 5 minutes.
D) Publish the reports to Amazon S3 and use Amazon CloudFront for downloading to the user.