You have a System Center Configuration Manager 2007 environment. There is a single DHCP server on the network. All client computers have Pre-boot Execution Environment (PXE) boot enabled in their BIOS settings.

You create a task sequence for an operating system installation package and advertise it to client computers. However, the PXE boot option is not presented to the client computers.

You need to install the operating system installation package by using PXE boot to start the installation.

What should you do?

A.
Change the advertisement to be mandatory.

B.
Install the PXE Boot Service on the DHCP server.

C.
Establish a PXE Service Point role within your site.

D.
On the DHCP server, open port 67 to handle the PXE boot requests.