You have a Skype for Business Server 2015 infrastructure.
You plan to deploy an archiving solution.
Your company has a compliance policy that has the following requirements:
Instant messaging (IM) conversations between external users and the members of a group named

Traders must be archived.
IM conversations between external users and the members of a group named HR must be archived.

Only the internal IM conversations of all other users must be archived.

You need to configure archiving policies to meet the compliance policy requirements.
Which three actions should you perform? Each correct answer presents part of the solution.