Which service is designed to let the customer leverage …

You are working with a customer who is using Chef configuration management in their data center. Which
service is designed to let the customer leverage existing Chef recipes in AWS?

A.
Amazon Simple Workflow Service

B.
AWS Elastic Beanstalk

C.
AWS CloudFormation

D.
AWS OpsWorks

Explanation:
http://aws.amazon.com/opsworks/