For the following code, which statement is not true?

public class Sphere

i

private double radius;

public double $x$;

private double $y$;

private double $z$;

Y

The $2$ field is available to code written outside the sphere class.

The radi us field is not available to code written outside the Sphere class.

The radius, $x,y,$ and $z$ fields are members of the Sphere class.

The $x$ field is available to code that is written outside the Sphere class.