which group should you add User1?

Your network contains an Active Directory domain named contoso.com. The domain
contains a server named Server1 that runs Windows Server 2012 R2.Server1 contains a
virtual machine named VM1 that runs Windows Server 2012 R2.
You need to ensure that a user named User1 can install Windows features on VM1. The
solution must minimize the number of permissions assigned to User1.
To which group should you add User1?

A.
Hyper-V Administrators on Server1

B.
Administrators on VM1

C.
Server Operators on Server1

D.
Power Users on VM1

Explanation:
The user has to be an administrator on VM1 to be able to install features.
References:
Training Guide: Installing and Configuring Windows Server 2012 R2, Chapter 10:
Implementing Group Policy, p.539