Discuss the role of acess specifiers in inheritance and show their visibility when they areinherited as public, private and protected.

Access specifiers in C++ are used to implement the encapsulation feature of OOP. They are used to set the visibility of classes, data, and methods. There are three types of access specifiers: public, private, and protected.

1. Public Specifier: When a base class is inherited publicly, the public members of the base class become public in the derived class and protected members of the base class become protected in the derived class.

2. Private Specifier: When a base class is inherited privately, both the public and protected members of the base class become private in the derived class.

3. Protected Specifier: When a base class is inherited protectedly, both the public and protected members of the base class become protected in the derived class.

Here is a simple visibility table:

Remember, private members of a base class are never inherited in the derived class. They can only be accessed through methods of the base class.