Respuesta :
I would say A and C because those are the best compared to the others.
Well, D is definitely correct - they both share cultures, especially along the border, because they used to be one country in the past.
I'm not sure about the second answer though, perhaps C (They both work together as economic partners.) is correct because they do trade a lot.
I'm not sure about the second answer though, perhaps C (They both work together as economic partners.) is correct because they do trade a lot.