Microsoft Windows 7 Question:

You want to create a 30GB native VHD called MySystem.vhd in a folder called Windows 7 on an external USB hard disk with the drive designation H. Which command do you use?
A) Create vdisk file=h:windows7mysystem.vhd maximum=30000
B) Create vdisk file=h:windows7mysystemvhd maximum=30
C) Create vdisk file=h:windows7mysystemvhd.vhd maximum=30
D) Create vdisk file=h:windows7mysystemvhd maximum=30000