You have to set up an Azure Kubernetes cluster to host a set of applications. Below are the key requirements for the deployment. The images must be published internally.
The Azure Kubernetes clusters must be able to create and manage containers in Azure.
Which of the following would you use for the requirement? 
“The images must be published internally.”

Answer options:

A.Azure Container Instances
B.Azure Container Registry
C.Azure Functions
D.Dockerfile

Answer – B 
You can use Azure Container Registry for having a private repository service. 
This is also mentioned in the Microsoft documentation. 

Since this is clearly mentioned, all other options are incorrect. 
For more information on Azure Container registry, please visit the following URL- 

https://docs.microsoft.com/en-us/azure/container-registry/container-registry-intro