Answer: The correct option is
(4) 4.
Step-by-step explanation: Given that Mr. Weiler has 32 students in his class he wishes to place them into 8 groups of equal size.
We are o select the option that represents the number of students per group.
We will be using the UNITARY method to solve the problem.
We have
the number of students in 8 groups = 32.
Therefore, the number of students in 1 group is given by

Thus, the number of students per group is 4.
Option (4) is CORRECT.