A company needs to run a short script each time a new item is added to an Amazon $S3$

bucket. Which compute option meets the need with the least amount of resource

provisioning?

Set up the script to run in a container, and deploy the container on Amazon Elastic

Container Service $($Amazon ECS$).$

Set up a small Amazon EC$2$ instance that runs code to check for new uploads to the

bucket and runs the script.

Create an AWS Lambda function to run the script whenever a new item is added to

the bucket.

Write a batch job to run the script on all new items overnight when there's less

competition for resources. Run the batch job on Spot Instances.