A Solutions Architect is designing a photo application on AWS. Every time a user uploads a photo to Amazon S3, the Architect must insert a new item to a DynamoDB table.

Which AWS-managed service is the BEST fit to insert the

item?

A. Lambda@Edge

B. AWS Lambda

C. Amazon API Gateway

D. Amazon EC2 instances

Reference https://aws.amazon.com/blogs/machine-learning/build-your-own-face-recognition-service-using-amazon-rekognition/