I answered mine with this and got it correct:
Keyword: Complicate
Picture: making things harder than they have to be
1/3 = .333333333
The solution is a repeating decimal and or an irrational number.
If I had gotten the lowest mark in the assignment, I would ask myself about the reason for this bad grade. A very probable reason is that I had not studied enough- probably I was distracted by other activities, such as watching a movie. However, since it resulted in a bad grade, I would want to change this behaviour next time and I would prepare for the exam instead of watching the movie!
If it allows 4 then it's 1,3,6,7 if it allows 3 then it's 1,6,7 if it allows 2 then it's 6,7