Dacia and Tracia produce both oil and apples using labour only. A barrel of oil can be produced with 4 hours of labour in Dacia and 8 hours of labour in Tracia. A bushel of apples can be produced with 8 hours of labour in Dacia and 12 hours of labour in Tracia. Dacia has a.an absolute advantage in producing apples b.a comparative advantage in producing oil c.an absolute advantage in producing oil d.a comparative advantage in producing apples e.none of the above