We found the young college student's presentation to be disingenuous and utterly
a.
pretentious
b.
conducive
c.
respective
d.
surreptitious
e.
demonic

A is the answer and it means with more drama than is actually needed

It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's.