You support a customer's Skype for Business Server 2015 environment. Your customer has granted User1 Conferencing Policy

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You support a customer's Skype for Business Server 2015 environment. Your customer has granted User1 Conferencing Policy A, and User2 Conferencing Policy
B.
When User2 joins a video conference that is hosted by User1, User2 sees only a single video window. Other users who are joined to the same conference see up to five concurrent video streams.
You need to configure the environment to allow User2 to view multiple concurrent video streams.
Which Skype for Business Management Shell command should you run?

A. Set-CSClientPolicy - EnableFullScreenVideo $True
B. Get-CSConferencingPolicy -Identity "˜Conferencing Policy B' | Set-CSConferencingPolicy -EnableMultiViewJoin $True
C. Get-CSConferencingPolicy -Identity "˜Conferencing Policy B' | Set-CSConferencingPolicy -AllowMultiView $True
D. Set-CSClientPolicy - EnableMediaRedirection $True