Solution
For this case we have the following gross income: 16960$
Tha maximum amount that he can deduct is 7 1/2% = 15/2 %
We can find the percentage from the original income:
0.075 * 16960= 1272
For this particular case the medical expenses were: 812.35$
812.35 - 1272= -459.65
So then he cant deduct, therefore the answer is:
c. 0$