Which three URLs can be changed?

You are the Office 365 administrator for your company.
The company uses Microsoft Lync Online and wants to customize Lync meeting invitations.
You need to identify the URLs that can be changed on the Lync meeting invitations from the Lync
admin center.
Which three URLs can be changed? Each correct answer presents part of the solution.

A.
Company URL

B.
Meeting URL

C.
Legal URL

D.
Logo URL

E.
Help URL

Explanation:
* LegalURL: URL to a website containing legal information and meeting disclaimers.
* LogoURL: URL for the image to be used on custom meeting invitations.
* HelpURL: URL to a website where users can obtain assistance on joining the meeting.

Set-CsMeetingConfiguration
https://technet.microsoft.com/en-us/library/gg398648.aspx