The following statement is an example of which type of opener? "you're the president of key club, aren't you? " self-references other references relational references context references

This statement is an example of other-reference, because the speaker addresses another person  (you), thus, focusing on the listener.

It can´t be an example of self-reference because the speaker doesn´t refer to himself and it can´t be a relational reference either because the speaker doesn´t try to involve the listener in any way. It can´t be a context reference either because it doesn´t emphasize on the context, on the situation, but on the listener. A context reference isn´t direct and personal like in this example.

what did the protagonist say?