Which of the following description about the VM NICS in the Fusion Compute is incorrect?

Which of the following description about the VM NICS in the Fusion Compute is incorrect?
A . SR-IOV pass-through mode NIC supports online addition.
B . Virtual machines with memory reuse (not 100% memory reservation) cannot configure pass-through settings
C . The virtual machine configured with pass-through device 2 must have exclusive memory. After the exclusive memory, the memory of the virtual machine will not be swapped to the swap space.
D . There is a limit to the number of network cards that can be added to each virtual machine.

Answer: A