Given the following classes and code, what is the output of the last statement shown?

class Pet
{
public:
virtual void print();
string name;
private:
};
class Dog: public Pet
{
public:
void print();
string breed;
};
void Pet::print()
{
cout << "My name is " << name;
}
void Dog::print()
{
Pet::print();
cout << ", and my breed is a "<< breed << endl;
}

Pet pPtr;
Dog dPtr;
dPtr->name= "Rover";
dPtr->breed="Weiner";
pPtr= dPtr;
pPtr->print();
a. My name is Rover, and my breed is a Weiner
b. My name is Rover
c. , and my breed is a Weiner
d. nothing

b. My name is Rover