You need to create an FSLogix profile. Which of the following is not a necessary step you need to perform in the process of creating an FSLogix profile?

Answer options:

A.Create an Azure storage account with a file share
B.Install FSLogix software in Azure Virtual Desktop gallery images
C.Create a new role in Azure AD to read and write in Azure storage
D.None of these

Correct Answer: B 
You don’t need to install FSLogix software in AVD gallery images while creating FSLogix profile as it is already installed in the Azure gallery images. You might need to install the FSLogix software yourself if you decide to use your own image.
Option A is incorrect. FSLogix profiles store user-assigned virtual disks in the file share in Azure.
Option B is correct. You don’t need to install FSLogix software in AVD gallery images while creating FSLogix profile as it is already installed in the Azure gallery images.
Option C is incorrect. A new role is needed in Azure AD to read and write in Azure storage so the users can access and change the virtual disks that contain their user profile.
Option D is incorrect. You don’t need to install FSLogix software in Azure Virtual Desktop gallery images.
Reference: 
To know more about how to create FSLogix profile for Azure Virtual Desktop users, please visit the below-given link: 

https://docs.microsoft.com/en-us/learn/modules/m365-optimize-wvd/3-provision-fslogix