Which multiple choice answer is it?

Production Possibilities Production Possibilities Boundary Economy A Boundary Economy B Quantity of Guns Quantity of Guns PANWAGON 2 3 2 3 4 5 6 7 8 Quantity of Butter Quantity of Butter Consider the figures above. In Economy A, the opportunity cost of making O A. butter in terms of guns is decreasing O B. butter in terms of guns is higher than in EconomyB. O C. butter in terms of guns is lower than in Economy B. D. butter in terms of guns is increasing. O E. guns in terms of butter is decreasing