Answer:
The answer is C.
Explanation:
If there are 12 students in class two, then 2 and 7 would both be out of the question, since one is over the "half" amount, and the other is far too close to the end for it to be logical. 1 would be out of the question as well, with the same reason as above, leaving only 5 students to earn a 90% or above.
