Your team currently has code hosted in a Github repository. You have to connect an Azure Boards project with a GitHub.com repository. 
Which of the following permissions must be given to a user for the GitHub repository to connect to GitHub from Azure Boards? Choose two answers from the options given below. Each answer presents a complete solution.

Answer options:

A.Administrator
B.Owner
C.Reader
D.Default

Answer – A and B 
You must be either the administrator or owner of the GitHub repository. 
This is also given in the Microsoft documentation. 

Since this is clearly mentioned in the Microsoft documentation, all other options are incorrect. 
For more information on connecting to GitHub from Azure Boards, please refer to the following link- 

https://docs.microsoft.com/en-us/azure/devops/boards/github/connect-to-github?view=azure-devops