protected function hint(question_attempt $qa, question_hint $hint) {
        return html_writer::nonempty_tag('div',
                $qa->get_question()->format_hint($hint, $qa), array('class' => 'hint'));
    }
protected function hint(question_attempt $qa, question_hint $hint) {
        return html_writer::nonempty_tag('div',
                $qa->get_question()->format_hint($hint, $qa), array('class' => 'hint'));
    }
protected function hint ( question_attempt $ qa , question_hint $ hint ) { return html_writer :: nonempty_tag ( 'div' , $ qa -> get_question ( ) -> format_hint ( $ hint , $ qa ) , array ( 'class' => 'hint' ) ) ; }
Gereate the specific feedback. This is feedback that varies according to
the response the student gave.
@param question_attempt $qa the question attempt to display.
@return string HTML fragment.
Gereate the specific feedback . This is feedback that varies according to the response the student gave .