Which of the services below do you get root access to?

Explanation:
AWS provides the root or system privileges only for a limited set of services, which includes
Elastic Cloud Compute (EC2)
Elastic MapReduce (EMR)
Elastic BeanStalk
Opswork
AWS does not provide root privileges for managed services like RDS, DynamoDB, S3, Glacier etc
For RDS, if you need Admin privileges or want to use features not enabled by RDS, you can go with the Database on EC2 approach

C