For this one, it is important to know that when it says "under par" think of that as a negative number. When doing that, here are the choices:
Jones= +3
Chang: -5
Gomez: -2
Harrison: -4
In golf, the lowest score wins, so put the numbers in numerical order from lowest to highest. Here the answer:
-5, -4, -2, +3
Now match the scores with the corresponding person:
Chang, Harrison, Gomez, and Jones
So A is your answer.
Hope this helps!