Ref Keyword for Reference Types

The Ref keyword is well known. It indicates that you are passing a reference, not a value, to a method. That means that if the method modifies the value, the changes will be apparent to the calling method as well.

Where I see a lot of confusion, however, is what happens when dealing with reference types. It is common to say that methods pass objects by reference, but that's not entirely true.

First, a pop quiz. Without actually running the code, what do you think this code snippet will produce?

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