In order to use the option dom0_mem to limit the amount of memory assigned to the Xen Domain-0, where must this option be specified?
A . In its Makefile, when Xen is built.
B . In the configuration file /etc/xen/Domain-0.cfg, when Xen starts.
C . In the bootloader configuration, when Xen is booted.
D . In its .config file, when the Domain-0 kernel is built.
E . In any of Xen’s global configuration files.
Answer: C