Which one of the following is the correct way to declare a pure virtua

1.	Which one of the following is the correct way to declare a pure virtual function?
A.	<i class="cpp-code">virtual void Display(void){0};</i>
B.	<i class="cpp-code">virtual void Display = 0;</i>
C.	<i class="cpp-code">virtual void Display(void) = 0;</i>
D.	<i class="cpp-code">void Display(void) = 0;</i>
Answer» D. <i class="cpp-code">void Display(void) = 0;</i>

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Which one of the following is the correct way to declare a pure virtual function?

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