Your network contains a Windows Server Update Services (WSUS) Server infrastructure that has three servers named WSUS1, WSUS2, and WSUS3. WSUS2 is a downstream replica server of WSUS1.WSUS3 is a downstream replica server of WSUS2.You need to ensure that the Update Services console on WSUS2 only displays computers that receive updates from WSUS2. What should you configure on WSUS2？（）
- A downstream servers
- B Personalization
- C reporting rollup
- D synchronizatio