what does DAUGHTER M mean or do in the main code?

Question

#include <iostream>
using namespace std;

class Mother {
public:
Mother()
{
cout <<"Mother ctor"<<endl;
}
~Mother()
{
cout <<"Mother dtor"<<endl;
}
};

class Daughter: public Mother {
public:
Daughter()
{
cout <<"Daughter ctor"<<endl;
}
~Daughter()
{
cout <<"Daughter dtor"<<endl;
}
};

int main() {
Daughter m;
}

Answer 1

You are calling Daughter class with a object m as a reference of Daughter class, Daughter class is derived from mother class

Answer 2

Thank you