Your network contains a server that has the HyperV server role installed. The server hosts a virtual machine (VM) named VM1. VM1 runs Windows Server 2008 R2 and has the file server role installed. You need to add more disk space to VM1. The solution must minimize the amount of downtime for VM1. What should you do first on VM1?

A.
Add a virtual disk to IDE controller 0.

B.
Add a virtual disk to IDE controller 1.

C.
Add a virtual disk to the SCSI controller.

D.
Add a passthrough disk to IDE controller 0.