public class Circle

$\{$

private double radius;

public Circle $($double r$)$

$\{$

radius $=$ r;

$\}$

$\}$

public class Cylinder extends Circle $\{$

private double length;

public Cylinder $($double r$,$ double l$)\{$

Circle $($r$)$;

length $=$ l;

$\}$

$\}$

Which of the following is true about the code in class Cylinder above:

Group of answer choices

The second statement in the constructor is invalid.

There is an error in the class because it doesn$$t have the zero parameter constructor.

The class is fine. It has no errors.

The first statement in the constructor is invalid.