To find the percentage of take-home pay is spent on food
We have to divide the amount spent on food by total take-home pay
Now as we can see the take-home pay = $5388
And the amount spent on food = $970
So lets divide
we get
970/5388 *100%
= 0.180029 * 100%
= 18.0029 %
≈18%
Option C is the correct answer.