c++ protected inheritance

Question

In the code below, what becomes protected members (x and y variables)
of parent class in the derived class? private,public or protected?

https://code.sololearn.com/ccc58BvegKxe

Answer 1

Protected members of class A can be assessed by class B
Protected variable can be assessed by child class but not only visible by world

Answer 2

I think I couldn't ask cleanly. I mean, for example public members of base class becomes private members of derived class inherited by private keyword. Then what happens by using protected keyword?