Which of the options include all of the data members that class Squares Print() function can access with the following class definitions?

class Rectangle {

public:

void Print();

protected:

void SetHeight(int h);

char area; // line 6

private:

int height; // line 8

int width; // line 9

};

class Square : public Rectangle {

public:

void Print();

protected:

double heightToWidthRatio; // line 15

private:

int hypotenuse; // line 17

};

Select one:

a. variables declared on line 6, 8, and 9

b. variables declared on line 15 and 17

c. variables declared on line 6, 8, 9, 15, and 17

d. variables declared on line 6, 15, and 17