下列DHCP服务的安装正确的方法是（）

A. [root@dzkj～]
B. mount /dev/cdrom/mnt/cdrom[root@dzkj～]
C. rpm -ivh/mnt/cdrom/Packages/dhcp-4.2.5-47.el7.x86_64.rpm
D. [root@dzkj～]
E. mount /dev/cdrom/mnt/cdrom[root@dzkj～]
F. rpm -ivh/mnt/Packages/dhcp-4.2.5-47.el7.x86_64.rpm
G. [root@dzkj～]
H. mount /dev/cdrom/mnt/cdrom[root@dzkj～]
I. rpm vh/mnt/cdrom/Packages/dhcp-4.2.5-47.el7.x86_64.rpm
J. [root@dzkj～]
K. mount /dev/cdrom/mnt/cdrom[root@dzkj～]
L. rpm vh/mnt/Packages/dhcp-4.2.5-47.el7.x86_64.rpm