You need to allocate the right process template in Azure Boards. 
You decide to use the “CMMI” process template. 
Would this fulfill the requirement?

Answer options:

A.Yes
B.No

Answer – A 
Yes, this process template has the work items for change and review requests. 
This is also given in the Microsoft documentation. 

For more information on process templates, please visit the below URL- 

https://docs.microsoft.com/en-us/azure/devops/boards/work-items/guidance/choose-process?view=azure-devops&tabs=basic-process