Which of the following can be used to boot a DVD from a remote device to initialize a Linux system s

Which of the following can be used to boot a DVD from a remote device to initialize a Linux system setup on bare metal hardware as if it is a local DVD?

A. UEFI

B. PXE
C. NFS
D. GRUB

Reference: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/installation_guide/ch-boot-x86