Company Background
Corporate Information
Amet Research is a highly secured electronic research institute which provides lots of electronic information.

Physical Locations
Amet Research has 4,500 employees located in offices all over the world. Employees work through three shifts to ensure the whole day service to customers. Employees share desktop computers.

Existing Environment
Existing IT Environment
All desktops have Windows XP Professional installed under OEM agreements. They have Microsoft Office Professional 2003 installed under Open License or select License agreements without Software
Assurance.

According to the work environment, a memory upgrade is required to be compatible with Windows Vista by all desktops.
Each branch office has a network server. All servers have a third-party operating system and third-party e-mail application installed.
Amet Research has a third-party accounting application.

Business Requirements
Planned Changes
Amet Research intends to make the following changes to its network during the next two years:
* Deploy 25 Windows Server 2008 Enterprise Servers at the head office
* Deploy a four-node Microsoft SQL Server cluster on single-processor servers
* Upgrade all existing desktops to Windows Vista
* Upgrade all existing desktops to Office Professional 2007
* Deploy 12 Microsoft Exchange Server 2007 Enterprise servers.
* Deploy 6 Microsoft Office SharePoint Server 2007 servers

Problems
Amet Research attempts to solve the following problems.

The third-party accounting application is not compatible with Windows Vista.
The company is not able to purchase licenses upfront any more.

Business Goals
Amet Research aims to achieve the following business goals:
* Minimize the amount of IT staff without impacting technical support provided to employees.
* Reduce licensing costs
* Consolidate purchasing within a single licensing program
* Avoid paying financing costs for the purchase of licenses
* Have all software licenses
* Train all employees on new applications
* Be able to install the latest Microsoft products as they become available

Question
Since the company needs a database licensing solution that provides the best return on investment (ROI) for the company and supports the planned changes, which licensing solution should be used?

A.
SQL Server Enterprise per processor license

B.
SQL Server Device CALs

C.
SQL Server Standard per processor license

D.
SQL Server User CALs