The material and questions on TDC were EXACTLY what was needed to help me pass the exam. I appreciated the thoroughness of the explanations and rationale as to how to think about and answer the questions. I went into my exam confident and completed ALL questions. When I took the exam previously, not only did I not finish the exam, I was not confident in how I processed the questions. In addition, TDC extended my access to the material without any problem! THANK YOU SO MUCH, TDC, as I will be using the material to study when it is time to test for my license!