Suppose on pushing a button an object is to be notified, but it is not known until runtime which object should be notified. Which of the following programming constructs should be used to implement this idea?

Suppose on pushing a button an object is to be notified, but it is not

1.	Suppose on pushing a button an object is to be notified, but it is not known until runtime which object should be notified. Which of the following programming constructs should be used to implement this idea?
A.	Attribute
B.	Delegate
C.	Namespace
D.	Interface
Answer» C. Namespace

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Suppose on pushing a button an object is to be notified, but it is not known until runtime which object should be notified. Which of the following programming constructs should be used to implement this idea?

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