private void CheckAnswersQuestion()
        {
            var correctAnswer = ServiceDataSource.SubmitQuestionAnswers(CurrentQuestion.Id, CurrentQuestion.Answers.Where(a => a.IsSelected).Select(a => a.Id).ToArray());

            if (correctAnswer)
            {
                RightAnswerCount++;
            }
            else
            {
                WrongAnswerCount++;
            }
        }