class String_demo { public static void main(String args[]) { char chars[] = {'a', 'b', 'c'}; String s = new String(chars); String s1= "abcd"; int len1 = s1.length(); int len2 = s.lenght(); System.out.println (len1 + " " + len 2); } } What will be the output of the following Java program? Select one: a. 4 3 b. 0 3 c. 3 4 d. 3 0