You have to deploy a set of Azure Virtual Machines that will sit behind an Azure Load Balancer. The Virtual Machines will have a web site hosted on them. Users will be accessing the web site via the URL <a href="https://tests.com" target="_blank">https://tests.com</a>. 
You have to implement probes based on HTTPS. You have to ensure that costs are reduced in the implementation process. 
Which of the following would you choose as the underlying SKU type for the Load Balancer?

Answer options:

A.Basic
B.Standard
C.Premium
D.Isolated

Answer – B 
The Azure Load balancer has two SKU types: Basic and Standard. 
The Standard SKU supports the HTTPS probe type. 
The Microsoft documentation mentions the following. 

Since this is clearly mentioned in the Microsoft documentation, all other options are incorrect. 
For more information on probes for the Azure Load Balancer – Impact, please refer to the following link- 

https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-custom-probe-overview