A company has Windows Server 2012 R2 servers that have the Hyper-V role installed. The guest
virtual machines are configured as follows:

You need to configure the environment to support the creation of failover clusters.
What should you do?

A.
Convert the data drives to use the VHDX file format.

B.
Convert the operating system drive to use the virtual hard disk (VHD) file format.

C.
Convert the virtual machines to Generation 2 virtual machines.

D.
Upgrade the operating system to Windows Server 2012 R2.