Scenario: A Citrix Administrator receives complaints that virtual desktops are becoming unresponsive. The current XenServer environment consists of one server that has two 16-core processors and 96 GB of RAM. Dynamic memory control is enabled. Each virtual machine is assigned 2 GB of RAM and 2 vCPUs. Currently, the environment has 65 virtual desktops.
To resolve the issue that users are experiencing, the administrator could add additional __________. (Choose the correct option to complete the sentence.)
A. NICs
B. CPUs
C. storage
D. memory