You are preparing two reports. The first report lists VMs assigned to customers. The second report is a complement of the first report. What would be an appropriate filter expression for the second report?
A. devtype is "VirtualMachine" and customer is not present
B. devtype is "VirtualMachine" or customer is not present
C. devtype is "VirtualMachine" and customer is present
D. devtype is "VirtualMachine" and customer is not ([list customer names in extension])