A company needs to create around 50 customized Virtual Machines. Out of these, only 20 are Windows-based Virtual machines which are identical, and 30 are Ubuntu Machines, again of identical configuration. All virtual machines will be used in a load-balanced configuration. Which of the following would help reduce the administrative effort required to deploy the machines?

Answer options:

A.Azure Load Balancer
B.Azure Web Apps
C.Azure Traffic Manager
D.Azure Scale sets

Answer – D 
The Microsoft documentation mentions the following. 

Option A is incorrect since this is used to divert traffic to back-end virtual machines at the network layer. 
Option B is incorrect since it is used to host web applications. 
Option C is incorrect since this is used for DNS-based traffic routing. 
For more information on Virtual Machine Scale sets, please visit the below URL- 

https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/overview