A group of virtual machines has been deployed using thin disks due to limited storage space availability. The storage team has expressed concern about extensive use of this type of provisioning. Which of the following actions can be taken to inform an administrator when an unacceptably large number of virtual machines are being deployed using thin disk provisioning?

A.
Use the default Host Storage Status alarm. Create a trigger for the alarm with an e-mail or SNMP notification option.

B.
Create an alarm for Disk Usage and determine the appropriate amount. Create a trigger for the alarm with an e-mail or SNMP notification option.

C.
Modify the default Datastore Usage on Disk alarm with a determined percentage. Create a trigger for the alarm with an e-mail or SNMP notification option.

D.
Create an alarm for Datastore Disk Overallocation and determine an appropriate percentage.
Create a trigger for the alarm with an e-mail or SNMP notification option.