Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions :
Figure: Guns and Butter
-(Figure: Guns and Butter) Look at the figure Guns and Butter. This production possibility frontier is:

A) bowed out because of increasing opportunity costs.
B) bowed in because of increasing opportunity costs.
C) bowed in because of constant costs of guns and butter.
D) linear because of constant costs.