【单选题】
You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. <br /> You create a login Web form by using the following code fragment.  <br /> | English | Chinese | Japan | Korean | - 153 - Test Information Co.， Ltd. All rights reserved. <br /> <br /> <br />  <br /> When a user clicks the btnLogin Button control， the login（） client-side script is called to authenticate the <br /> user. The credentials provided in the TextBox controls are used to call the client-side script. <b
A、A
B、B
C、C
D、D
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