What will be the output of the following Java program?

import java.io.*;
public class filesinputoutput 
{
  public static void main(String[] args) 
    {
 String obj  = "abc";
       byte b[] = obj.getBytes();
       ByteArrayInputStream obj1 = new ByteArrayInputStream(b);
       for (int i = 0; i < 2; ++ i) 
       {
           int c;
           while ((c = obj1.read()) != -1) 
           {
             if (i == 0) 
               {
                   System.out.print(Character.toUpperCase((char)c)); 
             }
           }
       }
    }
}

A. abc

B. ABC

C. ab

D. AB

Answer: Option B