You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: multiple_choice_radio.rb
    path of file: ./repos/expertiza/app/models
    
    the code of the file until where you have to start completion: class MultipleChoiceRadio < QuizQuestion
  def edit
    quiz_question_choices = QuizQuestionChoice.where(question_id: id)

    html = '<tr><td>'
    html += '<textarea col
    
  def complete
    quiz_question_choices = QuizQuestionChoice.where(question_id: id)
    html = '<label for="' + id.to_s + '">' + txt + '</label><br>'
    # for i in 0..3
    [0, 1, 2, 3].each do |i|
      # txt = quiz_question_choices[i].txt
      html += '<input name = ' + "\"#{id}\" "
      html += 'id = ' + "\"#{id}" + '_' + "#{i + 1}\" "
      html += 'value = ' + "\"#{quiz_question_choices[i].txt}\" "
      html += 'type="radio"/>'
      html += quiz_question_choices[i].txt.to_s
      html += '</br>'
    end
    html
  end