C++ supports polymorphism by providing constructors to create objects of different types and by allowing classes to be inherited from parent classes. The inheritance feature allows a class to inherit all the attributes and methods defined within its parent class, including any virtual functions that may exist.   Virtual functions allow for both static and dynamic inclusion of data and code elements based on user input, enabling true polymorphic behavior. Additionally, C++ also supports compile-time arguments known as templates, which allow you to pass type parameters directly into a method or class at compile time. By utilizing these features in conjunction with each other, developers can create powerful programs that leverage the power of polymorphism in C++.