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How run-time polymorphisms are implemented in C++?

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How run-time polymorphisms are implemented in C++?

(a) Using Inheritance

(b) Using Virtual functions

(c) Using Templates

(d) Using Inheritance and Virtual functions

This question was addressed to me at a job interview.

This interesting question is from OOPs Concept topic in portion Basics Concepts of C++ of C++

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Correct answer is (d) Using Inheritance and Virtual functions

Easy explanation - Run-time polymorphism is implemented using Inheritance and virtual in which object decides which function to call.

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