The last question is "a combination of 1 butter and 6 gun is possible"

Figure 1.3.3 Monthly Production Possibilities for a Country Producing Only Butter and Guns K Guns Butter Possibility O 8 a 6 b 4 O C According to the production possibilities in Figure 1.3.3, A. the opportunity cost of producing guns increases as more guns are produced. O B. a combination of 4 butter and 0 guns is possible. O C. the opportunity cost of producing guns decreases as more guns are produced. O D. the opportunity cost of producing guns is constant as more guns are produced. O E. a combination of 1 butter and 6 gun is possible