Your company has a Git repository in Azure Repos. The developers currently bring the changes directly to the master branch. You have to implement the following requirements. Ensure that the master branch is protected. Here you need to ensure that new changes are built in the feature branches first.
Ensure that changes are reviewed and approved by at least one release manager before each merge
All changes must be brought into the master branch with the use of pull requests.
Which of the following would you implement for this requirement?

Answer options:

A.Branch policies
B.Project settings
C.Deployment pools
D.Branch security

Answer – A 
To ensure that changes are reviewed and a pull request is in place for merges, you can use Branch policies. The Branch policy can enforce for reviews to be carried out in pull requests. 
Option B is incorrect because here you can only work with the settings of the project itself. 
Option C is incorrect because this is used to manage the virtual machines which are used for deployment. 
Option D is incorrect because this can’t be used to enforce rules on pull requests. 
For more information on Branch policies, you can refer to the below link- 

https://docs.microsoft.com/en-us/azure/devops/repos/git/branch-policies-overview?view=azure-devops