Based on the scenario, that person title should be the Vice President of the United States
Currently, that position is being held by Joseph R. Biden
hope this helps
        
                    
             
        
        
        
Answer: Adversely affected by changing trends 
Explanation:
Every country needs to have multiple diversified exports to be able to combat changing trends in trade as a result of economic trends. 
South America exports mostly primary commodities such as foodstuff, oil and other raw materials. If economic conditions lead to the prices of these goods falling then South American economies would face hardships as income earned from exports will fall drastically. 
2020 for instance saw the prices of oil fall to very low prices as there weren't enough vessels using fuel due to the various lockdowns around the world. This heavily affected countries reliant on oil exports in South America such as Venezuela and Bolivia. 
In short, depending on few exports can be damaging to the economy because economic trends can lead to a downturn in fortune. It is best to have a diversified export portfolio. 
 
        
             
        
        
        
B and D??? Sorry if incorrect but its my best guess
        
                    
             
        
        
        
States demanded the power to regulate trade is best answer why did Congress call for the Constitutional Convention, articles of confederation simply didn't regulated that matter
        
                    
             
        
        
        
Answer:
they fought for North America and there rich fur trade