You are the IT administrator of a company with an Azure Active Directory Free tenant and cloud only users.You want to enable your users to change their own passwords. What should you do?

Answer options:

A.Upgrade your Azure tenant to a paid tier.
B.Enable Multi-factor authentication for your users.
C.Enable password writeback in AD Connect configurations.
D.Enable self-service password reset.

Correct Answer: D 
You should enable self-service password reset. Given your users are cloud only, this feature is free of charge. Therefore there is no need to upgrade to a paid tier.Option A is incorrect. Self-service password reset is free for cloud users. 
Option B is incorrect. This is not a requirement for enabling self-service password reset. 
Option C is incorrect. You should enable password writeback if you want to enable password changes made in Azure to be reflected in your local Active Directory. This feature requires Azure Premium P1.
Reference:
To know more about self-service password reset, please refer to the link below: 

https://docs.microsoft.com/en-us/microsoft-365/admin/add-users/let-users-reset-passwords?view=o365-worldwide