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Question:You are developing a custom event handler to automatically print all open documents. The event handler helps specify the number of copies to be printed. You need to develop a custom event arguments class to pass as a parameter to the event handler. Which code segment should you use?

A public ref class PrintingArgs { 
 public : 
 EventArgs Args; 
 PrintingArgs(EventArgs ea) { 
 this->Args = ea; 
 } 
 }; 
B public ref class PrintingArgs { 
 public : 
 int Copies; 
 PrintingArgs (int numberOfCopies) { 
 this->Copies = numberOfCopies; 
 } 
 }; 
C public ref class PrintingArgs : public EventArgs { 
 public : 
 int Copies; 
 }; 
D public ref class PrintingArgs : public EventArgs { 
 public : 
 int Copies; 
 PrintingArgs(int numberOfCopies) { 
 this->Copies = numberOfCopies; 
 } 
 };

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Question:You are developing a custom event handler to automatically print all open documents. The event handler helps specify the number of copies to be printed. You need to develop a custom event arguments class to pass as a parameter to the event handler. Which code segment should you use?

A public ref class PrintingArgs { public : EventArgs Args; PrintingArgs(EventArgs ea) { this->Args = ea; } };

B public ref class PrintingArgs { public : int Copies; PrintingArgs (int numberOfCopies) { this->Copies = numberOfCopies; } };

C public ref class PrintingArgs : public EventArgs { public : int Copies; };

D public ref class PrintingArgs : public EventArgs { public : int Copies; PrintingArgs(int numberOfCopies) { this->Copies = numberOfCopies; } };

D

A public ref class PrintingArgs {
public :
EventArgs Args;
PrintingArgs(EventArgs ea) {
this->Args = ea;
}
};

B public ref class PrintingArgs {
public :
int Copies;
PrintingArgs (int numberOfCopies) {
this->Copies = numberOfCopies;
}
};

C public ref class PrintingArgs : public EventArgs {
public :
int Copies;
};

D public ref class PrintingArgs : public EventArgs {
public :
int Copies;
PrintingArgs(int numberOfCopies) {
this->Copies = numberOfCopies;
}
};