You work as a Software Developer for ABC Inc. The company uses Visual Studio.NET 2005 as its application development platform. You are deploying a class library using the .NET Framework. Portions of…

You work as a Software Developer for ABC Inc. The company uses Visual Studio.NET 2005 as its application development platform. You are deploying a class library using the .NET Framework. Portions of your code need to access system environment variables. You need to force a runtime security exception only when the callers that are higher in the call stack do not have necessary permissions to access the resources. Which of the following methods will you use to accomplish the task?