单项选择题
A.You should add a new hard disk to the storage pool，extend the disk in File and Storage Services.
B.You should mount a new volume on the storage pool in File and Storage Services.
C.You should convert the disk to a dynamic disk in Computer Management.
D.You should convert the disk to a dynamically expanding virtual hard disk （VHD）.
E.You should detach the disk in File and Storage Services and increase its size.