(a) Object-oriented programming allows you to define and compile a general form of a class. Later you can define a specialized version of this class, starting with the original class. Which particular...

(a) Object-oriented programming allows you to define and compile a general form of a class. Later you can define a specialized version of this class, starting with the original class. Which particular OOPs technique does this depict?

(b) Why is an object used as the perfect mechanism for creating a collection?

(c) What type of collection is a stack? Give one natural example of the usage of stacks in computer science.