Elance Exams Answers PDF file

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What is the effect of using 'weak' in the following @property definition: @property (nonatomic, weak) SomeClass *responder; ?

The responder object is retained and the pointer is set to nil when the object is destroyed
The responder object is not retained and the pointer is set to nil when the object is destroyed
The responder object is retained and the pointer will point to free memory when the object is destroyed
The responder object is not retained and the pointer will point to free memory when the object is destroyed
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