Your network contains an Active Directory domain named contoso.com. The domain contains a server named
Server1. Server1 runs Windows Server 2012 R2 and has the Hyper-V server role installed.
On Server1, an administrator creates a virtual machine named VM1.
A user named User1 is the member of the local Administrators group on Server1.
User1 attempts to modify the settings of VM1 as shown in the following exhibit. (Click the Exhibit button.)

You need to ensure that User1 can modify the settings of VM1 by running the Set-Vm cmdlet.
What should you instruct User1 to do?

A.
Import the Hyper-V module.

B.
Install the Integration Services on VM1.

C.
Run Windows PowerShell with elevated privileges.

D.
Modify the membership of the local Hyper-V Administrators group.

Explanation:
You can only use the PowerShell snap-in to modify the VM settings with the vm cmdlets when you are an
Administrator.
Thus best practices dictate that User1 run the PowerShell with elevated privileges.
http://technet.microsoft.com/en-us/library/jj713439.aspx