While installing an application， the administrator is instructed to perform two final tasks prior to starting the application：  
1.Set the ownership of a file named ’control_file’ to be owned by the user ’database’ and the group ’appsrvr’.  
2.Change the permissions of ’control_file’ to 0766.  
After these two tasks have been completed， what will the file permissions look like when ’ls -l control_file’ is executed？（）

A.-rwxrw-rw- 1 database appsrvr 4913 Mar 17 08：24 control_file
B.-rw-r--r-- 1 appsrvr database 4913 Mar 17 08：24 control_file
C.-rw-r--r-- 1 database appsrvr 4913 Mar 17 08：24 control_file
D.-rwxrw-rw- 1 appsrvr database 4913 Mar 17 08：24 control_file