Can someone help me?

Option a)

Explanation:

On a option, says that this code is for finds the average. On the last line, n1 + n2 + n3, all this divide by 3. But, for the hierarchy of operations and the lack of parenthesis, the code divide n3 by 3 and then add the numbers n1 and n2 to the result.

Is not the same:

15 + 24 + 9 / 3 = 42

That

(15 + 24 + 9) / 3 = 16

answer; middle level managers;