单项选择题 选择正确的选项（）

多项选择题 选择正确的选项（）

单项选择题 You are creating an application that retrieves values from a custom section of the application configuration file.The custom section uses XML as shown in the following block. You need to write a code segment to define a class named Role.You need to ensure that the Role class is initialized with values that are retrieved from the custom section of the configuration file.Which code segment should you use？（）