Which of the following commands lists the snapshots existing in the disk image vm1.img?
A . qemu-info snapshots vm1.img
B . qemu-img snapshot -l vm1.img
C . qemu -hda snapshot -l vm1.img -noboot -list snapshots
D . qemu-snapshots -l vm1.img
E . qemu-monitor -snapshots -hda vm1.img
Answer: B