C. (0,2) if you plot these points correctly on a graph, the center is at 0,2. hope this helped.
11.5 * 2.3 = large door size
large door size / 12 = large door size in feet
large door size in feet / 10 = how many large doors can be cut from the board. (you have to round it down if there's a decimal- no 1/2 doors.)