Study the following code snippet:

#ifndef ANIMAL$\_$H

#define ANIMAL$\_$H

class Animal

$\{$

public:

Animal$()$;

Animal$($double new$\_$area$\_$hunt$)$;

private:

double area$\_$hunt;

$\}$;

#endif

The above file is saved as "Animal.h$".$ The following is the source file.

#include "Animal.h$"$

Animal::Animal$()$

$\{$

area$\_$hunt $=0$;

$\}$

int main$()$

$\{$

Animal cheetah$1(250\mathrm{.}00)$;

return $0$;

$\}$

Which of the following is true about the code snippet?