A company runs an application that uses multiple Amazon EC2 instances to gather data from its users The data is then processed and transferred to Amazon S3 for long-term storage A review of the application shows that there were long penods of time when the EC2 instances were not being used A solutions architect needs to design a solution that optimizes utilization and reduces costs.
Which solution meets these requirements?
A . Use Amazon EC2 in an Auto Scaling group with On-Demand instances.
B . Build the application to use Amazon Lightsail with On-Demand Instances
C . Create an Amazon CloudWatch cron job to automatically stop the EC2 instances when there is no activity
D . Redesign the application to use an event-driven design with Amazon Simple Queue Service (Amazon SQS) and AWS Lambda.
Answer: B
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