Answer:
(a)
Explanation:
Basically we're trying to figure out how many groups of 32 students are needed to have more than 140.
To do this, we take 140/32 (*BIG NOTE!! No matter what our answer is, we round up. If we rounded down, we'd be leaving some students behind, and we don't want that.)
140/32 = 4.375 (but remember, we round up no matter what)
so the answer is 5, which is A.