Correct answer - "S3ReadPolicy". AWS SAM allows you to choose from a list of policy templates to
scope the permissions of your Lambda functions to the resources that are used by your
application.
AWS SAM applications in the AWS Serverless Application Repository that use policy templates don't
require any special customer acknowledgments to deploy the application from the AWS Serverless
Application Repository.
S3ReadPolicy => Gives read-only permission to objects in an Amazon S3 bucket.
S3CrudPolicy => Gives create, read, update, and delete permission to objects in an Amazon S3
bucket.
SQSPollerPolicy => Gives permission to poll an Amazon SQS Queue.
LambdaInvokePolicy => Gives permission to invoke a Lambda function, alias, or version.
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