Can i know how to know which instance data are accessible?

2. Answer the following about the given classes. (2 marks) public class A1 \{ public int x; private int y; protected int z; \} public class A2 extends A1 \{ protected int a; private int b; 3 public class A3 extends A2 \{ private int q; 3 Which of the lists of instance data are accessible in class A2 ? X, Z, A, B Which of the lists of instance data are accessible in class A3 ? X,Z,A