Mark works as a Programmer for InfoNet Inc.

Mark works as a Programmer for InfoNet Inc. He writes the following programs.

1. package book;

2. public class read

3. {

4. (access modifier) int r1=10;

5. }

1. package book1;

2. import book.read;

3. class Doread extends read

4. {

5. public void test()

6. {

7. System.out.println("The value of r1 is." +r1);

8. }

9. }

Which of the following access modifiers will be put in the place of the word, (access modifier), to compile the program successfully?