题目内容：
You recently developed a Web application that accesses an external Web service to retrieve current exchange rates for Certkiller .com‘s e-Commerce Web site. The Web service converts USD prices to the customer‘s local currency. You have stored the URL to the external Web service‘s endpoint in the section of the Web.config file. The Web application has been successfully deployed to a Certkiller .com Web server named Certkiller -SR14. A few months later the vendor of the Web service changes the port that is used to access the Web service. You need to update the section of the Web application‘s Web.config file from Certkiller -WS528. You need to ensure that your solution has a minimal impact on customers that may be connected to the e-Commerce Web site.What should you do?（）A.Create a Host entry in the Lmhosts file on Certkiller -SR14. Point the Host entry to the new end point.
B.Use the Copy Web Site function in Visual Studio 2005 to deploy the Web.config file from Certkiller -WS528 to Certkiller -SR14.
C.Create a Web Setup project in Visual Studio 2005 to deploy the Web.config file from Certkiller -WS528 to Certkiller -SR14.
D.Use the Web Site Administration Tool to change the <appSettings> section of the Web.config file.
参考答案：