The code must be written in c++ programming language. And it is very important that each step of the code must be well explained with comments!

Exe 4.3.1 (1 point). A) Run the program and explain the output: #include using namespace std; class Base { public: Base(){cout using namespace std; class Base { private: int field1; int field2; public: Base() : field1(5), field2(10) {}; }; class Derived : public Base { public: int Product() {return field1*field2;}; }; int main() { Derived obj; cout