Answer:
seems like D since it doesn't specify what times are we talking about but if not it would be A
Answer: countries must engage in trade to get the goods they need to survive.
Explanation:
Earth's resources are not evenly distributed across the planet which means that some countries will have resources that other countries do not have but might need in order to produce goods and services.
The solution to this is to enter into trade agreements where a country is able to get the materials that it needs from other countries as well as sell materials needed by other countries to them.
