The correct answer is retroactive interference
Retroactive interference refers to the phenomenon wherein newly learned and memorized information get in the way of or interferes with recalling and retrieving old memories. In this instance, Alexis's newly formed memory of her current phone number is interfering with her ability to retrieve the memory of her former <span>dorm room's</span> phone number.
        
             
        
        
        
I am pretty sure it is C. Glacier melting
Because Sedimentation I don't think will contribute to that 
 
        
                    
             
        
        
        
<u>ANSWER:</u>
The correct option is A: The country was in recession. 
<u>EXPLANATION:</u>
- When Obama became the president in 2009, the country was in great recession and financial crisis. Obama's main challenge was to fight and do away with the recession of 2008 that had hit the country hard. 
- Obama was successful in fighting this recession. He not only announced an economic stimulus package for the country but also cut taxes and funded public works. 
- By investing in the country, Obama was able to get the country out of recession in a few years.
 
        
             
        
        
        
C.) reduce his food expenditure like maybe not go to the most expensive restaurant to go eat.