Not sure but no one has 100% answers only way is we have to ask demo file and verify the same.

Just trust them! Take the material and prepare for your exams. Follow their instructions

Well the best and only way is to try them out, you will be happy with their materials.

Try them out and you will know...! I used all their products and they never failed me

Common sense - buy it and use it, without doing anything you will never know

Just purchase and follow their advice! There are many others out there who are really horrible. You can use their pass guarantee service to ensure you pass

Take a leap of faith mate! They are really good people i can assure you