Hi..C++ is modified language from C
The key features C++ which are not possible in C are:
1.Data Abstraction: - you can hide data or restrict data access to particular part of a program.
2.Encapsulation: - you can wrap up data and functions to work as a single unit.
3.Modularity: - you can partition data into individual components to reduce complexity.
4.Inheritance: - It is a capability of one class of things to inherit capabilities or properties from another class.
5.Polymorphism: - It is the ability for a message or data to be processed in more than one form.
And all these concept fall under OOP ( Object Oriented Programming ) terminology ...and Done!