What is the output of this program? class output { public static void main(String args[]) { StringBuffer s1 = new StringBuffer("Hello"); StringBuffer s2 = s1.reverse(); System.out.println(s2); } }

What is the output of this program? class output

1.	What is the output of this program? class output { public static void main(String args[]) { StringBuffer s1 = new StringBuffer("Hello"); StringBuffer s2 = s1.reverse(); System.out.println(s2); } }
A.	Hello
B.	olleH
C.	HelloolleH
D.	olleHHello
Answer» C. HelloolleH