Your network consists of a single Active Directory domain. All domain controllers run Windows Server 2008 R2. All servers run Windows Server 2008 R2. All client computers run Windows 7. You need to generate a monthly report on the status of software updates for the client computers. Your solution must meet the following requirements： èDisplay all of the operating system updates that installed successfully èDisplay all of the Microsoft application updates that installed successfully èDisplay all of the operating system updates that failed to install èDisplay all of the Microsoft application updates that failed to install èMinimize administrative effort èMinimize costs What should you do？（）

A. Install Microsoft System Center Essentials （Essentials） 2007. Deploy management agents on all client computers.
B. Install Microsoft System Center Configuration Manager （SysMgr） 2007. Deploy management agents on all client computers.
C. Install Windows Server Update Services（WSUS）3.0SP2.Configure Windows Update byusing a Group Policy object （GPO）.
Deploy Microsoft Baseline Security Analyzer （MBSA） 2.1 on the client computers. Run MBSA on each client computer， and save the report to a shared folder on the network.