A company runs a mobile app-based health tracking solution. The mobile app sends 2 KB of data to the company’s backend servers every 2 minutes. The user data is stored in a DynamoDB table. The development team runs a nightly procedure to scan the table for extracting and aggregating the data from the previous day. These insights are then stored on Amazon S3 in JSON files for each user (daily average file size per user is approximately 1 MB). Approximately 50,000 end-users in the US are then alerted via SNS push notifications the next morning, as the new insights are available to be parsed and visualized in the mobile app. You have been hired as an AWS Certified Solutions Architect Professional to recommend a cost-efficient solution to optimize the backend design. Which of the following options would you suggest? (Select two)