A concession stand at a football game sells hamburgers and boxes of candy. Jeremy buys a total of 16 items. The number of candy boxes he buys is four less than three times as many hamburgers. Which system of equations models this situation if he bought h hamburgers and c boxes of candy? 3h - 4 = 16 h-C = 16 C = 3-4 h+C = 16 h = 4 - 30 h + C + 4-3 = 16 h = 3c - 4 h+c=16