问题：

[单选]

You are the network administrator for TestKing. The network consists of a single
Active Directory domain. All network servers run Windows Server 2003. Half of the
client computers run Windows XP Professional, and the other half run Windows
NT 4.0 Workstation.
You install Terminal Services on three member servers named Testking1,
Testking2, and Testking3. Each server has a single Pentium III 600-Mhz CPU with
512 MB of RAM and a single-channel EIDE disk subsystem. You place all three
terminal servers in an organizational unit (OU) named Terminal Server. You link a
Group Policy Object (GPO) to the Terminal Server OU.
Several days after the installation, users report that the performance of all three
terminal servers is unacceptably slow. You discover that each server has at least 50
active sessions at once.
You need to improve the performance of all three terminal servers. You must
achieve this goal by using the minimum amount of administrative effort, without
upgrading any hardware.
What should you do?（）

A . Log on to the console of each terminal server. In the RDP-Tcp connection properties, set the Maximum connections option to 35.
B . Edit the GPO to set the Limit number of connections policy to 35.
C . Modify all domain user accounts to set the When a session limit is reached or broken user property to End session.
D . Edit the GPO to enable the Remove Disconnected option from shutdown dialog policy