Which two of the following are CaaS services? (Choose two.)

Amazon ECS (Elastic Container Service) is a fully managed container orchestration service that allows users to run and manage Docker containers on AWS, clearly classifying it as a CaaS offering.

Google Edge TPU (Tensor Processing Unit) is a purpose-built ASIC designed for accelerating AI inference at the edge, not a Container as a Service offering.

Azure AKS (Azure Kubernetes Service) is a fully managed Kubernetes service provided by Microsoft Azure, simplifying the deployment, management, and scaling of containerized applications, making it a prominent CaaS solution.

IBM Cloudant is a distributed NoSQL database as a service (DBaaS), which falls under Platform as a Service (PaaS), not Container as a Service.