An application uploads photos to an Amazon S3 bucket. Each photo that is uploaded to the S3 bucket must be resized to a thumbnail image by the application. Each...

An application uploads photos to an Amazon S3 bucket. Each photo that is uploaded to the S3 bucket must be resized to a thumbnail image by the application.
Each thumbnail image is uploaded with a new name in the same S3 bucket.
Which AWS service can a developer configure to directly process each single S3 event for each S3 object upload?

A. Amazon EC2 B. Amazon Elastic Container Service (Amazon ECS) C. AWS Elastic Beanstalk D. AWS Lambda