What is the output of this program?

(a) [A, B, C]

(b) [1, 2, 3]

(c) {A=1, B=2, C=3}

(d) [A=1, B=2, C=3]

import java.util. *; class Maps { public static void main(String args []) { } } TreeMap obj new Tree Map (); obj.put ("A", new Integer (1)); obj.put ("B", new Integer (2)); obj. put ("C", new Integer (3)); System.out.println (obj .entrySet ()); =