You use Microsoft .NET Framework 4 to create a Windows Forms application. You write the following code segment. (Line numbers are included for reference only.) You need to ensure that the first time each user opens the application, a text field displays the following message: "Please enter your setting." Which code segment should you insert at line 03? （）

• A、 [UserScopedSetting()] [DefaultSettingValue("Please enter your setting.")]
• B、 [UserScopedSetting()] [SettingsDescription("Description: Please enter your setting.")]
• C、 [ApplicationScopedSetting()] [DefaultSettingValue("Please enter your setting.")]
• D、 [ApplicationScopedSetting()] [SettingsDescription("Description: Please enter your setting.")]