Which three actions should you perform in sequence?

DRAG DROP
You have an Office 365 tenant that uses an Enterprise E3 subscription.

You must prevent five specific users from using Skype for Business Online to send instant messages to external users. All other users must be able to send instant
messages to both internal and external users.
You need to configure the environment.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the
correct order.
Select and Place:

Answer:

Explanation:
To configure external communications for individual users
1. Open the Skype for Business admin center: Sign in to the Microsoft Online Services portal, and then click Admin > Skype for Business.
2. Click Users, select the users whose settings you want to modify, and then click Edit
3. Click External communications, and then select or clear the options as appropriate:
* Skype for Business users Skype for Business users in federated domains
* People on public IM networks Users of the Skype public IM service.
4. Click Save.
Review and configure Skype for Business settings
https://technet.microsoft.com/en-us/library/dn771172.aspx