def choices
      extracted_choices = []

      unless self.qp_answers.nil?
        self.qp_answers.each do |choice|   
          extracted_choices.push(Choice.new(choice))
        end           
      end

      return extracted_choices        
    end
def choices
      extracted_choices = []

      unless self.qp_answers.nil?
        self.qp_answers.each do |choice|   
          extracted_choices.push(Choice.new(choice))
        end           
      end

      return extracted_choices        
    end
Extract the choices from the hashes stored
 inside qp_answers attribute.

 @return [Array<QuestionproRails::Choice>] Choices.