For the Questions Below, Use the Following Partial Class Definitions

For the questions below, use the following partial class definitions:
public class A1
{
public int x;
private int y;
protected int z;
...
}
public class A2 extends A1
{
protected int a;
private int b;
...
}
public class A3 extends A2
{
private int q;
...
}
-Which of the following lists of instance data are accessible in A3?

A) x, y, z, a, b, q
B) a, b, q
C) a, q
D) x, z, a, q
E) x, a, q