You plan to deploy to an Azure Kubernetes Service (AKS) cluster using the Helm 'package and deploy' task. Which component must be installed in the AKS namespace to support this deployment?

Tiller is the server-side component of Helm 2 that runs inside the Kubernetes cluster and manages the release of Helm charts. The Helm 'package and deploy' task relies on Tiller to install, upgrade, and manage applications defined by Helm charts within the AKS namespace. Azure Container Registry (ACR) is used to store Docker images and Helm charts but is not installed within the AKS namespace itself to facilitate the deployment. A Chart is the Helm package format, not a component installed in the cluster. kubectl is the command-line tool for interacting with Kubernetes clusters, but it's a client-side tool, not a server-side component within the AKS namespace required by the Helm task.