You need to provide users from both departments with the ability to print to the network print device

Your network contains a server named Server1 that runs Windows Server 2012.
Server1 has the Print and Document Services server role installed.
You connect a new print device to the network.
The marketing department and the sales department will use the print device.
You need to provide users from both departments with the ability to print to the network print device.
The solution must ensure that if there are multipledocuments queued to print, the documents from the sales
users print before the documents from the marketingusers.
What should you do on Server1?

A.
Add one printer. Modify the printer priority and the security settings.

B.
Add two printers. Modify the priorities of each printer and the security settings of each printer.

C.
Add two printers and configure printer pooling.

D.
Add one printer and configure printer pooling.

Explanation:
http://wiki.answers.com/Q/How_do_you_set_different_print_priority_for_different_users
How do you set different print priority for different users?
To set different print priority to different groups
Open Printers and Faxes.
Right-click the printer you want to set, click Properties, and then click the Advanced tab.
In Priority, click the up or down arrows, and thenclick OK.
Or, type a priority level, where 1 is the lowest level and 99 is the highest, and then click OK.
Click Add Printer to add a second logical printer for the same physical printer. For instructions.
Click the Advanced tab.
In Priority, set a priority higher than that ofthe first logical printer.
Instruct the regular group of users to use the first logical printer name and the group with higher priority to
use the second logical printer name. Set the appropriate permissions for the different groups.
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NB :
http://technet.microsoft.com/en-us/library/cc757086%28v=ws.10%29.aspx
Creating a printing pool
You can create a printing pool to automatically distribute print jobs to the next available printer.
A printing pool is one logical printer connected to multiple printers through multiple ports of the print
server. The printer that is idle receives the next document sent to the logical printer. This is useful in anetwork
with a high volume of printing because it decreasesthe time users wait for their documents. A printing pool also
simplifies administration because multiple printerscan be managed from the same logical printer on a server.
With a printing pool created, the user prints a document without having to find out which printer is available. The
logical printer checks for an available port and sends documents to ports in the order that they are added.
Adding the port connected to the fastest printer first ensures that documents are sent to the printer that can
print the fastest before they are routed to slower printers in the printing pool.
Before setting a printing pool, consider the following:
All printers in a pool must use the same driver.
Because users will not know which printer in the pool prints a given document, make sure all printers in the
pool are located in the same place.