14. Three individuals, Mary, Jack and Helen, make up the total demand for donuts per month in a particular market. Mary's demand curve is 5P = 5000 - 1.25QM. Jack's demand curve for donuts is given by P = 1000 - 0.5QJ. Helen's demand curve is given by QH = 2000 - 2P. The market demand curve would be:

A) Q = 400 - 0.25P B) P = 400 - 0.125Q

C) P = 1000 - 0.25Q D) P = 1000 - 0.125Q

E) P = 1000 - 1.25Q F) P = 1000 - 4Q

G) P = 4000 - 0.125Q H) P = 250 - 4Q