If japanese workers are more productive than french workers, then trade between japan and france

a) can take place only if france has an absolute advantage in producing a good or service japanese buyers want.
b) cannot take place because japanese goods and services will be less expensive than french goods and services.
c) cannot take place until french workers become more productive.
d) will take place so long as each country has a comparative advantage in a good or service that buyers in the other country want.

20 point pls brianliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula. 5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects. 8. describe the planets’ orbits around the sun. 9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets. 13. what causes the seasons?