C++ MQCs with Explanation (CHAPTER : POINTERS, VIRTUAL FUNCTIONS AND POLYMORPHISM )

If x is a private data member of a class, then it is legal to assign a value to x inside a member function using

1. x = 100;
2. this ->x = 100;
3. (*this).x = 100;
4. all the above

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Answer: 

Option d: all the above

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Explanation Here