You are developing a class library. Portions of your code need to access system environment variables. You need to force a runtime SecurityException only when callers that are higher in the call stack do not have the necessary permissions. Which call method should you use?

You are developing a class library. Portions of your code need to access system environment
variables.
You need to force a runtime SecurityException only when callers that are higher in the call stack
do not have the necessary permissions.
Which call method should you use?

A. set.Demand();
B. set.Assert();
C. set.PermitOnly();
D. set.Deny();

Answer: A