Final answer:
AWS services that use serverless technology are Amazon DynamoDB and Amazon Simple Storage Service (S3). DynamoDB is a serverless NoSQL database, and Amazon S3 is a serverless object storage service. EC2 and AWS Autoscaling involve server management, hence they are not serverless.
Step-by-step explanation:
Among the AWS services listed, the ones that utilize serverless technology are A. DynamoDB and C. Simple Storage Service (S3). Amazon DynamoDB is a fully managed NoSQL database service that supports key-value and document data structures and requires no server provisioning or management. Another service, Amazon S3, is an object storage service offering scalability, data availability, security, and performance, which also operates on a serverless model where customers don't manage servers but directly interact with storage resources.
On the other hand, EC2 is a web service providing secure, resizable compute capacity in the cloud but is not serverless as it involves managing server instances. Similarly, AWS Autoscaling is related to automatically adjusting resources based on demand, but it's not considered serverless as it scales EC2 instances which require server management.