What is the error in writeFile( )? public static void writeFile() throws IOException{ FileOutputStream foStream = null; PrintWriter outFS = null; foStream = new FileOutputStream(); outFS = new PrintWriter(foStream); outFS.println("Java is my favorite language!"); outFS.flush(); foStream.close(); }   A. The output stream has not been properly opened B. writeFile( ) should throw PrintException C. outFS has not been closed D. foStream has not been flushed

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