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.
<span style="font-size:calc(var(--rem) * 1px * 1.0625); letter-spacing:0px">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 Azure Kubernetes clusters must be able to create and manage containers in Azure.”

Answer options:

A.An Azure Active Directory user
B.An Azure Active Directory group
C.An Azure Automation Account
D.An Azure service principal

Answer – D 
To provide access for the Azure Kubernetes cluster to the Azure Container registry, we have to use a service principal. 
This is also mentioned in the Microsoft documentation. 

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

https://docs.microsoft.com/en-us/azure/aks/cluster-container-registry-integration