A developer deploys an AWS Lambda function that runs each time a new Amazon S3 bucket is created. The Lambda function is supposed to attach an S3 Lifecycle policy to each new S3 bucket. The developer discovers that newly created S3 buckets have no S3 Lifecycle policy attached.
Which AWS service should the developer use to find a possible error in the Lambda function?

A. AWS CloudTrail
B. Amazon S3
C. AWS CloudFormation
D. Amazon CloudWatch