private void UserControlEnd_Load(object sender, EventArgs e)
{
q = bl.exerciseReturnRB();
lblQuestion.Text = q.QuestionText;
mark.Text = q.Percent.ToString();
answers = bl.answerA(q.ID);
radioButton1.Text = answers[0].AnswerValue.ToString();
radioButton2.Text = answers[1].AnswerValue.ToString();
radioButton3.Text = answers[2].AnswerValue.ToString();
radioButton4.Text = answers[3].AnswerValue.ToString();
}