A company is currently planning to develop a project using the Agile project approach. The company wants to have a communication system in place for the various project teams. Below are the key requirements for the communication system- Provide the ability to have different communication channels for isolating members of different project teams.
The chat history for the various channels should be maintained.
It should be able to integrate into Azure DevOps.
It should provide the ability to add external contacts to the projects.
Which of the following could you choose for this requirement?

Answer options:

A.Microsoft Flow
B.Microsoft teams
C.Microsoft Lync
D.Microsoft Project

Answer – B 
The best software to use for these requirements is Microsoft Teams. The Microsoft documentation mentions the following when it comes to the features provided by Microsoft teams. 

Option A is incorrect since this is more for creating workflows. 
Option C is incorrect since Lync has been replaced with Microsoft teams. 
Option D is incorrect since this is a project management software. 
For more information on Microsoft Teams, please visit the below URL- 

https://products.office.com/en-us/microsoft-teams/group-chat-software