How many bytes does the following program write to temp.txt? : Questions « File « SCJP

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import java.io.*;
         
      public class TestIOApp {
       public static void main(String args[]) throws IOException {
        FileOutputStream outStream = new FileOutputStream("test.txt");
        String s = "AAAA";
        for(int i=0;i<s.length();++i)
         outStream.write(s.charAt(i));
        outStream.close();
       }
      }

A. 2 bytes
B. 4 bytes
C. 8 bytes
D. 16 bytes