All 14 exams are 'passable' with the right amount of work....Put the effort in and you will get the result!.......Sit at the back of class farting and dicking about then you'll struggle on the test day!
I have seen people with manual backgrounds study their neck off and go on to pass all 14!!
I have also seen people with degrees from reputable Universities go on and fail them!! Mainly because of dicking about in class!!!
Hope that helps!