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Which of the following is true about pure virtual functions?1) Their implementation is not provided in a class where they are declared.2) If a class has a pure virtual function, then the class becomes abstract class and an instance of this class cannot be created.

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Which of the following is true about pure virtual functions?<br>1) Their implementation is not provided in a class where they are declared.<br>2) If a class has a pure virtual function, then the class becomes abstract class and an instance of this class cannot be created.






 
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