public IActionResult AddExamQuestion(int type, int examid, string stem, [FromBody] object[] parameters)
 {
     try
     {
         ExamQuestion.QuestionType questionType = (ExamQuestion.QuestionType)type;
         return(Ok(questionBll.AddExamQuestion(questionType, examid, stem, parameters)));
     }
     catch (Exception e)
     {
         return(NotFound(e.Message));
     }
 }