Your company currently has an on-premises setup. They use Team Foundation Server for managing continuous delivery pipelines. They also now wants to make use of Azure DevOps services. They <span style="font-size:calc(var(--rem) * 1px * 1.0625); letter-spacing:0px">also <span style="font-size:calc(var(--rem) * 1px * 1.0625); letter-spacing:0px">are planning to use slack for team communication. 
They want to create work items directly from slack channels effectively. 
Which of the following should they consider when integrating Azure DevOps and Slack?

Answer options:

A.Azure Boards for Slack
B.Service Hook subscription
C.Azure Pipelines for Slack
D.Azure Repos for Slack

Answer – A 
For this, they should consider using Azure Boards for Slack. 
This is also given in the Microsoft documentation. 

Since this is clearly mentioned, all other options are incorrect. 
For more information on using Slack with Azure DevOps, please visit the following URL- 

https://docs.microsoft.com/en-us/azure/devops/service-hooks/services/slack?view=azure-devops