c++ question:

//definition of class Rectangle

class Rectangle

{

public: double area();

double perimeter();

Rectangle();

Rectangle(double x, double y);

private: double length;

double width;

};

Consider the segment of code above. Which of the following declarations is correct?__________ (2 points)

Select one:

a. Rectangle rect;

b. rect Rectangle ;

c. rect Rectangle.area();

d. class Rectangle rect;