A company has deployed a number of virtual machines to their Azure subscription. They want to know if there are any recommendations to have a reduction in costs for running the virtual machines in Azure. Which of the following would help in this regard? 

Answer options:

A.Virtual Machines
B.Advisor
C.Cost Management + Billing
D.Help + support

Answer – B 
If you look at Azure Advisor, it can actually give you a purchase recommendation on how you can reduce costs when it comes to Virtual machines. Below is an example. 

Since this is clear from the implementation, all other options are incorrect. 
For more information on Azure Advisor Cost Recommendations, please visit the below URL- 

https://docs.microsoft.com/en-us/azure/advisor/advisor-cost-recommendations