You are the network administrator for The network consists of a single Active Directory domain All network servers run Windows Server 2003, and all client computers run Windows XP Professional. All users in the sales department are members of a group names Sales. Tess, a member of Sales, creates a custom document named Salescustom.doc. She is responsible for making all required changes to this file. Tess places the file in a shared folder named TessDocs on a member server named TestKingA. Then she goes on vacation. When users from the sales department try to open Salescustom.doc, they receive the following error message: 'Access is denied'. You log on to the console of TestKingA and try to open Salescustom.doc. You receive the same error message. You need to ensure that members of Sales have read-only access to Salescustom.doc. You must not affect Tess's permissions on Salescustom.doc or on any other files in TessDocs. You must not grant access to Salescustom.doc to any other users. First, you log on to TestKingA as an administrator. What should you do next?（）