Suppose there are only 2 nations, Atlantis and Pacifica, and only two goods, surfboards and kayaks. If Atlantis produces only surfboards, it can make 50 per day. If Atlantis produces only kayaks, it can make 75 per day. If Pacifica produces only surfboards, it can make 75 per day. If Pacifica produces only kayaks, it can make 75 per day. After trade begins, ________ will specialize in the production of surfboards and ________ will specialize in the production of kayaks.
a. Pacifica; Atlantis
b. Pacifica; Pacifica
c. Atlantis; Atlantis
d. Atlantis; Pacifica