Users Use Vsphere 5

Multiple Choice

Users use vsphere 5.5 to build business virtualization.  In the course of the operation it was found that a host was using too many SCSI reservations, leading to vmfs performance degradation. What method can be used to eliminate the root cause of SCSI reservation conflicts? (Multiple choice.)

A) Reduce the number of snapshots.
B) Reduce the number of virtual machines per LUN.
C) Increase the number of LUNs and limit the number of hosts accessing the same LUN.
D) Change the type of virtual disk created.