MCQOPTIONS
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				| 1. | 
                                    What is the function used to deregister event handler f ? | 
                            
| A. | deleteAllListeners(name) | 
| B. | deleteListener(name,f) | 
| C. | removeListener(name,f) | 
| D. | removeAllListeners(name) | 
| Answer» D. removeAllListeners(name) | |