Question: What is a listener in context to event handling? (a) A listener is a variable that is notified when an event occurs. (b) A listener

What is a listener in context to event handling?

(a) A listener is a variable that is notified when an event occurs.

(b) A listener is an object that is notified when an event occurs.

(c) A listener is a method that is notified when an event occurs.

(d) None of the mentioned

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